US1712877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination fill, air vent, and relief coupling
Assignee: Atlantic Richfield Co
•
Filing: 1925-11-12
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Granted: 1929-05-14
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Expires: 1945-11-12
Abstract
No abstract record available.
Inventors
- 👤 Carl H Ehlers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:05
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/18; F16K17/19; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/314; Y10T137/7287; Y10T137/7358; Y10T137/742; Y10T137/8593; Y10T137/86292; Y10T137/86324; Y10T137/86332; Y10T137/86928
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) | 1932-05-13 | 1932-11-12 | 1933-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-05-13 | 1936-11-12 | 1937-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-05-13 | 1940-11-12 | 1941-05-14 | $7700.00 | Window Closed / Lapsed |