Patent US1801749A successfully refreshed from Google Patents.
US1801749A
Expired / Lapsed
US
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Shut-off valve and control for tank trucks
Assignee: Standard Oil Company of California
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Filing: 1924-02-02
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Granted: 1931-04-21
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Expires: 1944-02-02
Abstract
No abstract record available.
Inventors
- 👤 Mceachern Joseph Hambric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:50
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/22; B60P3/224; B60P3/225; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4857; Y10T137/4874; Y10T137/6851; Y10T137/6855; Y10T137/6881
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) | 1934-04-20 | 1934-10-20 | 1935-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-04-20 | 1938-10-20 | 1939-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-04-20 | 1942-10-20 | 1943-04-21 | $7700.00 | Window Closed / Lapsed |