US2503030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic spring control means and their mounting on vehicles
Assignee: Individual
•
Filing: 1946-05-18
•
Granted: 1950-04-04
•
Expires: 1966-05-18
Abstract
No abstract record available.
Inventors
- 👤 George W Crabtree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:11
CPC Classifications
B; B60; B60G; B60G15/00; B60G15/02; B60G15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1848783A
Cited
US927048A
Cited
US1527592A
Cited
US1567517A
Cited
US1563169A
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US2299935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |