Patent US4545375A successfully refreshed from Google Patents.
US2811013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn twisting machine
Assignee: Deering Milliken Research Corp
•
Filing: 1951-09-01
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Granted: 1957-10-29
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Expires: 1971-09-01
Abstract
No abstract record available.
Inventors
- 👤 Norman E Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:50
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/10; D01H1/105; D01H1/106; D01H13/00; D01H13/10; D01H13/104; D01H13/106
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) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |