US3403238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of heat energy to mechanical energy
Assignee: United States Department of the Navy
•
Filing: 1966-04-05
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Granted: 1968-09-24
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Expires: 1986-04-05
Abstract
No abstract record available.
Inventors
- 👤 William J Buehler
- 👤 David M Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:37
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/006; C22C; C22C19/00; C22C19/007; F; F03; F03G; F03G7/00; F03G7/06; F03G7/061; F03G7/0613; F03G7/0614; F03G7/063; F03G7/0633; H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/323; H01R; H01R4/00; H01R4/01; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/1963
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3174851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |