Patent US2771660A successfully refreshed from Google Patents.
US2771660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of crepe yarns and fabrics from nylon
Assignee: Patentex Inc
•
Filing: 1951-09-25
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Granted: 1956-11-27
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Expires: 1971-09-25
Abstract
No abstract record available.
Inventors
- 👤 Ephland Charles Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:20
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G3/00; D02G3/22; D02G3/26; D02G3/30; Y; Y10; Y10S; Y10S8/00; Y10S8/21; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |