Patent US1417443A successfully refreshed from Google Patents.
US3149776A
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US
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Air compressors utilizing the kinetic and potential energy of water waves common to bodies of water
Assignee: Individual
•
Filing: 1962-03-05
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Granted: 1964-09-22
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 William C Parrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:49
CPC Classifications
F; F03; F03B; F03B13/00; F03B13/12; F03B13/14; F03B13/24; Y; Y02; Y02E; Y02E10/00; Y02E10/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1271712A
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US2257378A
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US2896419A
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US2921444A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |