Patent US2959313A successfully refreshed from Google Patents.
US2959313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fork lift stacker
Assignee: Individual
•
Filing: 1957-08-01
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Granted: 1960-11-08
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Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Bettencourt
- 👤 William G Bettencourt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:50
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2234851A
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US2271624A
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US2601932A
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US2678141A
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US2647649A
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US2684773A
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US2684165A
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US2709018A
Cited
US2702131A
Cited
US2748965A
Cited
US2785818A
Cited
US2799417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |