US2943809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension control apparatus
Assignee: Eaton Corp
•
Filing: 1954-10-21
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Granted: 1960-07-05
•
Expires: 1974-10-21
Abstract
No abstract record available.
Inventors
- 👤 Roscoe H Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:53
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/1806; B65H23/195; B65H23/1955
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2242435A
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US2469706A
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US2512378A
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US2451901A
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US2516038A
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US2656129A
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US2659832A
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US2777964A
Cited
US2748299A
Cited
US2806157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |