Patent US3921456A successfully refreshed from Google Patents.
US2937046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shovel
Assignee: WOOD SHOVEL AND TOOL CO
•
Filing: 1957-02-04
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Granted: 1960-05-17
•
Expires: 1977-02-04
Abstract
No abstract record available.
Inventors
- 👤 Charles L Olvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:57
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/02
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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |