US3611522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of crimping continuous filament
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1968-11-01
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Granted: 1971-10-12
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Expires: 1988-11-01
Abstract
Abstract TANDEM HOT GEAR-CRIMPING, WITH THE GEARS OF THE SECOND ASSEMBLY HAVING DIFFERING CRIMPING CHARACTERISTICS, E.G. TEETH-PER-INCH, FROM THOSE OF THE FIRST ASSEMBLY.
Inventors
- 👤 Barrie Daniels
- 👤 William Edward Whale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:38
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/14
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |