US2371450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumohydraulic ram
Assignee: Individual
•
Filing: 1943-01-04
•
Granted: 1945-03-13
•
Expires: 1963-01-04
Abstract
No abstract record available.
Inventors
- 👤 Jesse D Langdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:00
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/06; F15B11/072; F15B11/0725; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20576; F15B2211/21; F15B2211/216; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/42; F15B2211/421; F15B2211/423; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/55; F15B2211/80; F15B2211/885; F15B2211/8855; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87378; Y10T137/8741; Y10T137/87491
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) | 1948-03-12 | 1948-09-11 | 1949-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-12 | 1952-09-11 | 1953-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-12 | 1956-09-11 | 1957-03-13 | $7700.00 | Window Closed / Lapsed |