Patent US2980037A successfully refreshed from Google Patents.
US2980037A
Expired / Lapsed
US
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Self-locking bar attachment
Assignee: Eaton Aeroquip LLC
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Filing: 1960-01-12
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Granted: 1961-04-18
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Expires: 1980-01-12
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Elsner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:46
CPC Classifications
B; B63; B63B; B63B25/00; B63B25/24; B60; B60P; B60P7/00; B60P7/06; B60P7/08; B60P7/0807; B60P7/0815; B60P7/135; B60P7/14; B60P7/15; B61; B61D; B61D45/00; B61D45/001; B61D45/006
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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |