Patent US3702877A successfully refreshed from Google Patents.
US3702877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair pieces containing fibers of nylon 6,butadiene-styrene copolymer and polyalkyl methacrylate
Assignee: Rohm and Haas Co
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Filing: 1971-08-04
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Granted: 1972-11-14
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Expires: 1991-08-04
Abstract
Abstract HAIR PIECES, WIGS AND LIKE PRODUCTS IN WHICH THE PREDOMINANT HAIR-SIMULATING FIBER IS A BLEND OF NYLON-6 AND A MODIFIED POLYALKYL METHACRYLATE, METHOD OF MAKING FIBER, AND FIBER.
Inventors
- 👤 Joseph C Bonafiglia
- 👤 Harold Krieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:05
CPC Classifications
A; A41; A41G; A41G3/00; A41G3/0083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |