US1636859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-control valve
Assignee: Individual
•
Filing: 1926-08-23
•
Granted: 1927-07-26
•
Expires: 1946-08-23
Abstract
No abstract record available.
Inventors
- 👤 George P Dempler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/122; F16K31/124; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/87048; Y10T137/87169; Y10T137/87217; Y10T137/87225
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) | 1930-07-25 | 1931-01-24 | 1931-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-07-25 | 1935-01-24 | 1935-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-07-25 | 1939-01-24 | 1939-07-26 | $7700.00 | Window Closed / Lapsed |