US1672394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1924-07-19
•
Granted: 1928-06-05
•
Expires: 1944-07-19
Abstract
No abstract record available.
Inventors
- 👤 Sumner B Sargent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6161; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791; Y10T137/7911; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86791; Y10T137/86799; Y10T137/86807
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) | 1931-06-05 | 1931-12-05 | 1932-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-06-05 | 1935-12-05 | 1936-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-06-05 | 1939-12-05 | 1940-06-05 | $7700.00 | Window Closed / Lapsed |