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Patent US5760081A successfully refreshed from Google Patents.
US3412940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner for town gas, liquefied gas, natural gas and mixtures thereof, and adapted to be fitted on boilers, stoves, air heaters and the like
Assignee: Individual
•
Filing: 1966-06-13
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Granted: 1968-11-26
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Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Luciano Ferroli Tredicesimo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:09
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2168758A
Cited
US1038965A
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US1451716A
Cited
CH172865A
Cited
US2044528A
Cited
US2026027A
Cited
US2411313A
Cited
US2541428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |