US3480582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-resistant fiber blends
Assignee: Wyeth Holdings LLC
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Filing: 1966-10-31
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Granted: 1969-11-25
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Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robert Bruce Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:20
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/443; C; C08; C08K; C08K13/00; C08K13/02; C08K5/00; C08K5/02; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4282; D04H1/43; D04H1/4382; D04H1/43835; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10S57/00; Y10S57/904; Y10T; Y10T428/00; Y10T428/29; Y10T428/2911
Claims Analysis
Total Claims: 0
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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) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |