Patent US2772910A successfully refreshed from Google Patents.
US2772910A
Expired / Lapsed
US
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Auxiliary control handle for shovels
Assignee: Individual
•
Filing: 1953-05-04
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Granted: 1956-12-04
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Orville K Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:44
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/02; A01B1/026
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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |