US1887344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking valve for gas burners
Assignee: Individual
•
Filing: 1930-01-30
•
Granted: 1932-11-08
•
Expires: 1950-01-30
Abstract
No abstract record available.
Inventors
- 👤 Charles E Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:03
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/02; F16K35/027; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20642
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) | 1935-11-08 | 1936-05-09 | 1936-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-08 | 1940-05-09 | 1940-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-08 | 1944-05-09 | 1944-11-08 | $7700.00 | Window Closed / Lapsed |