Patent US2318136A successfully refreshed from Google Patents.
US2318136A
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US
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Safety shutoff and control device
Assignee: Milwaukee Gas Specialty Co
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Filing: 1941-01-13
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Granted: 1943-05-04
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Expires: 1961-01-13
Abstract
No abstract record available.
Inventors
- 👤 Henry F Alfery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:09
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/8593; Y10T137/87096; Y10T137/87113; Y10T137/87917; Y10T137/88046
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) | 1946-05-03 | 1946-11-02 | 1947-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-03 | 1950-11-02 | 1951-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-03 | 1954-11-02 | 1955-05-04 | $7700.00 | Window Closed / Lapsed |