US2037302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety gas valve
Assignee: Individual
•
Filing: 1934-05-01
•
Granted: 1936-04-14
•
Expires: 1954-05-01
Abstract
No abstract record available.
Inventors
- 👤 Mathew C Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:53
CPC Classifications
F; F16; F16K; F16K17/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/773
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) | 1939-04-14 | 1939-10-14 | 1940-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-14 | 1943-10-14 | 1944-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-14 | 1947-10-14 | 1948-04-14 | $7700.00 | Window Closed / Lapsed |