An Inflatable Costume Prepares for Lift-Off

What changes in this design

Someone may expect an invention record to say how a costume inflates, what it is made from, or how it is worn.

Instead, this record focuses on visible form: a rounded bird-like head with a long beak-shaped front, large outlined eyes, two flared leg forms, and tall plus lower looped panels at the rear.

This helps you read the picture for its visible shape, without treating it as evidence of hidden materials, an inflation method, or results.

Three weeks is most of the selling season

American shoppers spent a record $13.1 billion on Halloween in 2025, up from $11.6 billion the year before. Costumes took $4.3 billion of that: two billion on adult outfits, 1.4 billion on children's, and 860 million on costumes for pets, which still surprises me.

That money arrives in a narrow window and then stops for a year. Now set that against the enforcement clock on the largest marketplace: a rival files a complaint against your listing, and if you do nothing, the product can be gone in about three weeks. Not a lawsuit. A web form.

One sentence, eight drawings, fifteen years

I have spent a week with one document that sits inside this. U.S. design patent D1,140,513, Inflatable Costume, issued on August 11, 2026 to Kang Deng of Jingzhou, China. There is no assignee, so an individual filer rather than a costume company. It was filed on June 4, 2024, spent about twenty-six months in examination, and runs fifteen years.

The patent is one sentence long: the ornamental design for an inflatable costume as shown and described, followed by eight standard figure views. That is the whole claim. Design patents cover how a thing looks, not how it works, so the brevity is ordinary. I'm not calling it irregular, only thin, and the thinness is what the rest of this is about.

The examiner cited an Amazon listing and a Google search

The revealing page is the list of references considered. Twelve U.S. design patents, nearly all granted between 2022 and 2025, to a dozen other individual filers. Alongside them, an Amazon product listing for an inflatable costume from 2024, a published application from 2020, and a Google Images search result dated January 2, 2026.

The examiner was looking in the right place; that's where this art lives now. But consider what the list means: the design had to be told apart from a dozen near-identical grants and a page of image results, and it issued anyway. Design applications draw a prior-art rejection somewhere between one and four percent of the time, against as much as sixty-eight percent for utility applications. One analysis tested the usual excuse, that duplicate filings inflate the denominator, and found the adjusted rate still sits near four percent. About 52,000 design patents issued in 2025, a record, up ten percent in a year while utility grants held flat.

What a patent number actually buys

Not a lawsuit, usually. It buys access to a takedown desk. To report a competitor on the largest marketplace you supply the patent number, the nature of the alleged infringement, and a product URL. Supporting documents are optional. The stated deterrents: the platform may revoke access for continuous submission of inaccurate notices, and the seller you hit might sue you.

The sibling program for utility patents shows the incentives plainly. An accused seller pays $4,000 to defend, settles, or goes to federal court. An outside attorney the platform selected decides, and the accused may not argue that the patent is invalid over prior art. A review of 140 federal cases touching that program found them up more than 200 percent between 2022 and 2025. One company said a single decision cost it as much as $70,000 a day in lost sales. At least five patents used to pull listings were later mostly or entirely invalidated.

A tougher test that this fight never reaches

In 2024, weeks before this application was filed, the Federal Circuit sitting en banc scrapped the old design-patent obviousness test and replaced it with the flexible four-factor analysis used for utility patents. Commentators expect that to make design patents easier to knock out.

Easier in court. The takedown queue runs no obviousness analysis, and in the sibling program the accused is barred from raising one. The patent office's own guidance says a design is not ornamental if its appearance is purely dictated by function. On an inflatable suit, the silhouette is largely set by the fan, the sealed bladder and the person inside. It's a fair question. Nobody in the removal pipeline is asked it.

What would have to be true

For this design to be what the grant says, its shape would have to differ from those twelve earlier grants in a way an ordinary observer would notice, and that difference would have to be chosen rather than dictated by the fan and the body inside. Maybe it does. I have looked at the drawings, and I am not the observer the law means.

What I am confident about is that the document's value does not depend on the answer. A number and a product link are enough to move a rival off the shelf during the only weeks that matter. Close that gap and the reason to file thin designs shrinks on its own. Leave it open, and 52,000 a year is a floor.

Sources

Reporting for this piece drew on the published filing and the references below.

1. US D1,140,513 S - Official Gazette entry, USPTO
2. Amazon Patent Pseudo-Court Can Halt Sellers With Scant Oversight
3. Design Patent Enforcement in Online Marketplaces
4. Challenging The Design Patent Obviousness Test
5. LKQ Corporation v. GM Global Technology Operations LLC (Fed. Cir. 2024, en banc)
6. The Surprising Headline of 2025: USPTO Stability?
7. NRF Consumer Survey Finds Halloween Spending to Reach Record $13.1 Billion
8. Design patent application guide - USPTO

The record, briefly. USD1140513S1, “Inflatable Costume” The checked public record identifies a U.S. design patent titled 'Inflatable Costume'. The reading treats the published title and figure as a visual starting point and does not infer a material, mechanism, or performance claim not established there.

More angles on this

• A Glove With a PortfolioAnother reading from the same A41D classification family, outerwear; protective garments; accessories.
• The Pants Have a Particular Part To PlayAnother reading from the same A41D classification family, outerwear; protective garments; accessories.
• CPC A41D: Outerwear; protective garments; accessoriesThe official classification family this record was filed into, published in the USPTO Cooperative Patent Classification scheme.
• CPC A63H: Toys, e.g. tops, dolls, hoops or building blocksThe official classification family this record was filed into, published in the USPTO Cooperative Patent Classification scheme.
• The Leveling Bar Has a Very Firm Opinion About LevelAnother reading from the neighbouring A01B classification family, soil working in agriculture or forestry.

Read around this one:Public patent recordUSPTO published figurePatent issue-date index