Patent US2748862A successfully refreshed from Google Patents.
US2748862A
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Hydraulically operated apparatus for operating on the walls of a pan-shaped object
Assignee: Motors Liquidation Co
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Filing: 1952-01-26
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Granted: 1956-06-05
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Expires: 1972-01-26
Abstract
No abstract record available.
Inventors
- 👤 Samuel W Alspaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:50
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/18; B21D51/22; B21D22/00; Y; Y10; Y10T; Y10T83/00; Y10T83/384; Y10T83/395; Y10T83/396; Y10T83/397; Y10T83/869; Y10T83/8691; Y10T83/8736; Y10T83/929; Y10T83/9411; Y10T83/9447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1235197A
Cited
US1435138A
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US2347808A
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US2521975A
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US2526163A
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US2545260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |