US2369838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic lifting device
Assignee: Individual
•
Filing: 1943-08-17
•
Granted: 1945-02-20
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Expires: 1963-08-17
Abstract
No abstract record available.
Inventors
- 👤 John H Minnis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:59
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B62; B62B; B62B3/00; B62B3/04; B62B3/06; B62B3/0612; B66F3/25; B66F3/26; B66F3/28; B66F7/00; B66F7/10; B66F7/16; B62B2203/00; B62B2203/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-02-20 | 1948-08-21 | 1949-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-20 | 1952-08-21 | 1953-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-20 | 1956-08-21 | 1957-02-20 | $7700.00 | Window Closed / Lapsed |