US3416877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Basic dye dyeing of polyacrylonitrile assisted by tributylphosphate and a phosphate ester of an ethylene oxide condensate
Assignee: GAF Corp
•
Filing: 1963-05-08
•
Granted: 1968-12-17
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Expires: 1983-05-08
Abstract
No abstract record available.
Inventors
- 👤 George M Gantz
- 👤 Henry R Mautner
- 👤 Edward J Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:03
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/667; D06P1/60; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/908; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2543316A
Cited
US3211514A
Cited
US1733057A
Cited
US1777038A
Cited
US2636802A
Cited
US2949432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |