US3436165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark ignition device with a gas control valve and a switch
Assignee: Caloric Corp
•
Filing: 1967-04-25
•
Granted: 1969-04-01
•
Expires: 1987-04-25
Abstract
No abstract record available.
Inventors
- 👤 Robert C Gehrke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:40
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/0206; F; F16; F16K; F16K5/00; F16K5/02; F16K5/0214; F24; F24C; F24C3/00; F24C3/10; F24C3/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US556138A
Cited
US853314A
Cited
US1735834A
Cited
US1895032A
Cited
US2482794A
Cited
US2888066A
Cited
US3305701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |