US2933276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base member for cribbing devices
Assignee: Individual
•
Filing: 1954-09-29
•
Granted: 1960-04-19
•
Expires: 1974-09-29
Abstract
No abstract record available.
Inventors
- 👤 Willie M Shoffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:59
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/15; E04G5/00; E04G5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US331742A
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US704884A
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US806402A
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US949394A
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US952655A
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US1110142A
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US1386511A
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US1568758A
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US2185948A
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US2238708A
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US2323195A
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US2452792A
Cited
US2611160A
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US2470397A
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FR1040056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |