US2876746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid actuated jack with pressure responsive automatic lock
Assignee: Hartford Special Machinery Co
•
Filing: 1954-10-26
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Granted: 1959-03-10
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Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 William H Storrs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:58
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/26; F15B15/262; B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/06; B23Q3/08; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/30; B23Q2703/00; B23Q2703/02; B23Q2703/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE211847C
Cited
FR829975A
Cited
US2337573A
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GB579294A
Cited
US2508240A
Cited
US2632425A
Cited
US2625910A
Cited
FR1042490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |