US1667877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic valve for gauges
Assignee: Individual
•
Filing: 1925-03-26
•
Granted: 1928-05-01
•
Expires: 1945-03-26
Abstract
No abstract record available.
Inventors
- 👤 Star Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:15
CPC Classifications
F; F16; F16K; F16K17/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7436
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1931-05-01 | 1931-10-31 | 1932-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-01 | 1935-10-31 | 1936-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-01 | 1939-10-31 | 1940-05-01 | $7700.00 | Window Closed / Lapsed |