Patent US3280374A successfully refreshed from Google Patents.
US3280374A
Expired / Lapsed
US
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Electrical recycling circuit for controlling and protecting functional equipment
Assignee: Individual
•
Filing: 1964-06-29
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Granted: 1966-10-18
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 William B Mccartney
- 👤 Edward O Uhrig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:05
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/08; H02H3/087; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/565; G05F1/569; G05F1/573; H02H3/02; H02H3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2959717A
Cited
US3086163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |