Patent US3833620A successfully refreshed from Google Patents.
US4537594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processed feathers
Assignee: Fogarty PLC
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Filing: 1984-07-13
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Granted: 1985-08-27
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Expires: 2004-07-13
Abstract
Abstract Feathers (including down) are provided with a water-repellant, bacterial-resistant, low friction cured fluorocarbon finish, such that the feathers have improved driability following washing and enhanced handle and resistance to clumping. The finished feathers are used in filled articles, such as quilts or pillows, which have enhanced washability.
Inventors
- 👤 Charles R. W. Fleet
- 👤 Vincent K. Hewinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:42
CPC Classifications
D; D06; D06M; D06M19/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
13 words
Feathers having thereon a water-repellent, bacterial-resistant, low friction cured fluoroalkyl acrylate copolymer finish.
Claim 2
Dependent Claim
13 words
Feathers having thereon a water-repellent, bacterial-resistant, low friction cured fluoroalkyl acrylate copolymer finish.
Claim 3
Independent Claim
24 words
A method of treating feathers, which comprises applying to said feathers an aqueous emulsion of a curable fluoroalkyl acrylate copolymer, and curing said polymer.
Claim 4
Independent Claim
24 words
A method of treating feathers, which comprises applying to said feathers an aqueous emulsion of a curable fluoroalkyl acrylate copolymer, and curing said polymer.
Claim 5
Dependent Claim
14 words
A method according to claim 2, in which said emulsion is applied by exhaustion.
Claim 6
Dependent Claim
19 words
A method according to claim 2, in which said feathers are thoroughly cleansed prior to application of said copolymer.
Claim 7
Dependent Claim
42 words
A method according to claim 4, in which said cleansing is by means of a water wash, followed by partial water removal so as to leave a residual moisture content of 5 to 45% based on the weight of completely dry feathers.
Claim 8
Dependent Claim
17 words
A method according to claim 2, in which said copolymer is cured at 130° to 170° C.
Claim 9
Independent Claim
29 words
A method of treating feathers, which comprises applying to said feathers an aqueous emulsion of a curable fluoroalkyl acrylate copolymer and curing said polymer at 130° to 170° C.
Claim 10
Independent Claim
29 words
A method of treating feathers, which comprises applying to said feathers an aqueous emulsion of a curable fluoroalkyl acrylate copolymer and curing said polymer at 130° to 170° C.
Claim 11
Dependent Claim
27 words
A filled article, which comprises a fabric casing having a filling comprising feathers having thereon a water repellant, bacterial resistant, low friction cured fluoroalkyl acrylate copolymer finish.
Claim 12
Dependent Claim
27 words
A filled article, which comprises a fabric casing having a filling comprising feathers having thereon a water repellant, bacterial resistant, low friction cured fluoroalkyl acrylate copolymer finish.
Claim 13
Dependent Claim
31 words
A filled article, which comprises a casing having a filling comprising feathers treated by applying to said feathers an aqueous emulsion of a curable fluroalkyl acrylate copolymer, which is then cured.
Claim 14
Dependent Claim
31 words
A filled article, which comprises a casing having a filling comprising feathers treated by applying to said feathers an aqueous emulsion of a curable fluroalkyl acrylate copolymer, which is then cured.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |