Patent US3445697A successfully refreshed from Google Patents.
US3445697A
Expired / Lapsed
US
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Brushless direction and speed sensing transducer
Assignee: Caterpillar Inc
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Filing: 1966-11-09
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Granted: 1969-05-20
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Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Philip J Costa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:26
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/02; G01P13/04; G01P13/045; G01P3/00; G01P3/42; G01P3/44; G01P3/46; G01P3/465; G01R; G01R31/00; G01R31/34; G01R31/343; H; H02; H02K; H02K99/00; H02K99/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3246184A
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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) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |