US2496893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic suspension means
Assignee: Individual
•
Filing: 1945-05-28
•
Granted: 1950-02-07
•
Expires: 1965-05-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:34
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/02; F16F9/04; F16F9/0436
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US792008A
Cited
US864375A
Cited
FR401632A
Cited
US1797146A
Cited
USRE20887E
Cited
US2226605A
Cited
US2317057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |