US2450387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic shock absorber
Assignee: RIBBESFORD Co Ltd
•
Filing: 1946-05-08
•
Granted: 1948-09-28
•
Expires: 1966-05-08
Abstract
No abstract record available.
Inventors
- 👤 Thornhill Peter Warborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:13
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/02; F16F9/0209; F16F9/0281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US630977A
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US1228496A
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US1283675A
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US1338118A
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US1501758A
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US1567515A
Cited
US2083020A
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US2349346A
Cited
US2410958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |