US3495940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high temperature resistant continuous filaments
Assignee: Celanese Corp
•
Filing: 1967-09-28
•
Granted: 1970-02-17
•
Expires: 1987-09-28
Abstract
No abstract record available.
Inventors
- 👤 Dagobert E Stuetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:54
CPC Classifications
D; D01; D01F; D01F11/00; D01F11/10; D01F11/12; D01F11/127; D01F11/16; D06; D06Q; D06Q1/00; D06Q1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US242900A
Cited
US1820625A
Cited
US2474502A
Cited
US2526876A
Cited
US2764539A
Cited
US2917439A
Cited
US3305460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |