US2296322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric safety shutoff device
Assignee: Milwaukee Gas Specialty Co
•
Filing: 1939-11-09
•
Granted: 1942-09-22
•
Expires: 1959-11-09
Abstract
No abstract record available.
Inventors
- 👤 Henry F Alfery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:32
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107; F23N2900/00; F23N2900/05101; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516; Y10T137/8593; Y10T137/86928; Y10T137/87016
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) | 1945-09-21 | 1946-03-23 | 1946-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-21 | 1950-03-23 | 1950-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-21 | 1954-03-23 | 1954-09-22 | $7700.00 | Window Closed / Lapsed |