US3004206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulated power supply
Assignee: Western Geophysical Company of America
•
Filing: 1959-01-26
•
Granted: 1961-10-10
•
Expires: 1979-01-26
Abstract
No abstract record available.
Inventors
- 👤 Sheffet David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:45
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3385; H02M3/3387; H02M3/3388
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2565621A
Cited
US2701333A
Cited
US2720622A
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US2785370A
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US2854614A
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US2783380A
Cited
US2816260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |