Patent US2952115A successfully refreshed from Google Patents.
US2952115A
Expired / Lapsed
US
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Drawtwister with slip coupling
Assignee: Solutia Inc
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Filing: 1958-02-24
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Granted: 1960-09-13
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Expires: 1978-02-24
Abstract
No abstract record available.
Inventors
- 👤 James E Bromley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/20; D02; D02G; D02G1/00; D02G1/02; D02J; D02J1/00; D02J1/22; D02J1/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |