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US3266918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Viscose solutions for making flame retardant rayon
Assignee: FMC Corp
•
Filing: 1962-12-19
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Granted: 1966-08-16
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Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Schappel
- 👤 Arthur I Bates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:05
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08; D01F2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2574515A
Cited
US2816004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |