US2898627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the continuous production of synthetic thread
Assignee: North American Rayon Corp
•
Filing: 1953-10-30
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Granted: 1959-08-11
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Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 Rudolph S Bley
- 👤 Ralph H Carter
- 👤 Donald J Edgar
- 👤 La Verne R Graybeal
- 👤 Knute M Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
D; D01; D01D; D01D13/00; B; B29; B29D; B29D99/00; B29D99/0078; D01D10/00; D01D10/04; D01D10/0436; D01D10/0463; D01D5/00; D01D5/06; D01F; D01F2/00; D01F2/06; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/731; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86187; Y10T137/86204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1803475A
Cited
US2203793A
Cited
US2334325A
Cited
US2416533A
Cited
US2587619A
Cited
US2533248A
Cited
US2558734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |