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US3750682A
Expired / Lapsed
US
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Hair pieces, wig and like products
Assignee: Individual
•
Filing: 1971-07-22
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Granted: 1973-08-07
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Expires: 1991-07-22
Abstract
Abstract Hair pieces, wigs and like products in which the predominant hair-simulating fiber is a blend of nylon-6 and a polyalkyl methacrylate, method of making fiber, and fiber.
Inventors
- 👤 J Bonafiglia
- 👤 H Krieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:22
CPC Classifications
A; A41; A41G; A41G3/00; A41G3/0083; D; D01; D01F; D01F6/00; D01F6/88; D01F6/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A hair piece, wig, or the like, in accordance with claim 1 wherein said methacrylate polymer is a polymer of methyl methacrylate containing not more than 5% ethyl acrylate.
Claim 2
Dependent Claim
32 words
A hair piece, wig or the like in accordance with claim 2 wherein said blend comprises about 20% by weight of the polymethyl methacrylate polymer and about 80% by weight of nylon-6.
References Cited (Backward Citations)
US2531685A
Cited
US3199516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |