US2644696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible spring and hydraulic loading means for vehicles
Assignee: Individual
•
Filing: 1949-11-05
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Granted: 1953-07-07
•
Expires: 1969-11-05
Abstract
No abstract record available.
Inventors
- 👤 Robert O Bill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/02; B60P1/025; B60G; B60G3/00; B60G3/01; B60G2202/00; B60G2202/20; B60G2202/21; B60G2204/00; B60G2204/40; B60G2204/423; B60G2204/4232
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |