US2597577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rayon yarn
Assignee: TEXTILE and CHEM RES CO Ltd
•
Filing: 1951-12-08
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Granted: 1952-05-20
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Expires: 1971-12-08
Abstract
No abstract record available.
Inventors
- 👤 Drisch Nicolas
- 👤 Brepson Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:47
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/08; D01F; D01F2/00; D01F2/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |