US1829020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure control of vehicle tank valves
Assignee: Individual
•
Filing: 1925-08-20
•
Granted: 1931-10-27
•
Expires: 1945-08-20
Abstract
No abstract record available.
Inventors
- 👤 Paul S Shield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/22; B60P3/224; B60P3/225; F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/32; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1812; Y10T137/1819; Y10T137/1834; Y10T137/4673; Y10T137/4857; Y10T137/4874
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) | 1934-10-26 | 1935-04-27 | 1935-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-10-26 | 1939-04-27 | 1939-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-10-26 | 1943-04-27 | 1943-10-27 | $7700.00 | Window Closed / Lapsed |