Patent US2620737A successfully refreshed from Google Patents.
US2620737A
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All purpose hydraulic jack
Assignee: Individual
•
Filing: 1947-09-11
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Granted: 1952-12-09
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Expires: 1967-09-11
Abstract
No abstract record available.
Inventors
- 👤 Roy G Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:52
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/12; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20612; Y10T74/20624
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US569574A
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US1225906A
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FR591358A
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FR765560A
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US2052781A
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US2254084A
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US2328483A
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US2341278A
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US2503478A
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US2497836A
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US2451390A
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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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |