US3467072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion optimizing devices and methods
Assignee: Energy Transformation Corp
•
Filing: 1966-08-31
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Granted: 1969-09-16
•
Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Rene A M Toesca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:45
CPC Classifications
F; F02; F02M; F02M29/00; F02M29/04; Y; Y10; Y10S; Y10S261/00; Y10S261/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1000385A
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US1106452A
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US1092279A
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US1629565A
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US1600007A
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US1868767A
Cited
US1873082A
Cited
US1866829A
Cited
US2152206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |