Patent US2814078A successfully refreshed from Google Patents.
US2956646A
Expired / Lapsed
US
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Wheel chock
Assignee: Individual
•
Filing: 1958-04-16
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Granted: 1960-10-18
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Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Isgren
- 👤 Harold W Jeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:49
CPC Classifications
B; B60; B60T; B60T3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1076152A
Cited
US1617369A
Cited
US1662159A
Cited
US1912038A
Cited
US1849964A
Cited
US2723005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |