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US2977763A
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Multi-torque circuits
Assignee: Individual
•
Filing: 1957-12-31
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Granted: 1961-04-04
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Expires: 1977-12-31
Abstract
No abstract record available.
Inventors
- 👤 Mercier Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:49
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/022; F15B1/00; F15B1/02; F15B2211/00; F15B2211/20; F15B2211/21; F15B2211/212; F15B2211/25; F15B2211/251; F15B2211/252; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/31; F15B2211/3122; F15B2211/3133; F15B2211/315; F15B2211/3157; F15B2211/31582; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/60; F15B2211/625; F15B2211/70; F15B2211/775
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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |