US2674713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectified current supply system
Assignee: Motors Liquidation Co
•
Filing: 1952-08-12
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Granted: 1954-04-06
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Expires: 1972-08-12
Abstract
No abstract record available.
Inventors
- 👤 Walter E Sargeant
- 👤 Kathrine S Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:03
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/16; H02J7/22; Y; Y10; Y10S; Y10S320/00; Y10S320/28
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) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |