US1844086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: Multiple Valve & Manufacturing Co
•
Filing: 1926-06-01
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Granted: 1932-02-09
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Expires: 1946-06-01
Abstract
No abstract record available.
Inventors
- 👤 John B Aufuldish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:30
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/16; F16K11/163; F16K11/165; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87064; Y10T137/877; Y10T137/87708; Y10T137/87748; Y10T137/87756
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) | 1935-02-08 | 1935-08-10 | 1936-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-02-08 | 1939-08-10 | 1940-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-02-08 | 1943-08-10 | 1944-02-09 | $7700.00 | Window Closed / Lapsed |