US3532526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame - retardant rayon containing mercapto-phosphonitrilate polymer
Assignee: FMC Corp
•
Filing: 1969-07-14
•
Granted: 1970-10-06
•
Expires: 1989-07-14
Abstract
No abstract record available.
Inventors
- 👤 Leonard E A Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:41
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10; C; C08; C08G; C08G79/00; C08G79/02; C08L; C08L1/00; C08L1/08; C08L1/22; C08L1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3266918A
Cited
US3455713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |