US2675816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas leak detector
Assignee: Individual
•
Filing: 1952-07-10
•
Granted: 1954-04-20
•
Expires: 1972-07-10
Abstract
No abstract record available.
Inventors
- 👤 Sam F Giannette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:06
CPC Classifications
F; F17; F17D; F17D5/00; F17D5/005; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1915; Y10T137/1939; Y10T137/1963; Y10T137/1987; Y10T137/6851; Y10T137/6966; Y10T137/6969
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US468185A
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US1304208A
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US1523759A
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US2055031A
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US2219391A
Cited
US2240397A
Cited
US2341727A
Cited
US2484202A
Cited
US2564295A
Cited
US2583930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |