US3404530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat motor
Assignee: United Carr Inc
•
Filing: 1967-03-01
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Granted: 1968-10-08
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Expires: 1987-03-01
Abstract
No abstract record available.
Inventors
- 👤 Wilmer H Churchill
- 👤 Armando J Garcia
- 👤 Douglas B Leathem
- 👤 Wright Malor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:57
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/021; G05D23/022; F; F03; F03G; F03G7/00; F03G7/06; F03G7/061; F03G7/06112; F03G7/06113; F03G7/064; F03G7/0641
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |