US1969954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injector valve
Assignee: Individual
•
Filing: 1929-08-19
•
Granted: 1934-08-14
•
Expires: 1949-08-19
Abstract
No abstract record available.
Inventors
- 👤 Taylor John Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/04; F02M61/08; Y; Y10; Y10T; Y10T137/00; Y10T137/6198; Y10T137/6253; Y10T137/6307
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) | 1937-08-13 | 1938-02-12 | 1938-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-13 | 1942-02-12 | 1942-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-13 | 1946-02-12 | 1946-08-14 | $7700.00 | Window Closed / Lapsed |