US3544873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for dynamo electric machine operable both as a motor or as a generator with regenerative braking
Assignee: Robert Bosch GmbH
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Filing: 1969-05-01
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Granted: 1970-12-01
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Expires: 1989-05-01
Abstract
No abstract record available.
Inventors
- 👤 Peter Gunsser
- 👤 Stefan Renner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:14
CPC Classifications
B; B60; B60L; B60L7/00; B60L7/10; B60L7/12; B60L50/00; B60L50/50; B60L50/52; H; H02; H02P; H02P3/00; H02P3/06; H02P3/08; H02P3/14; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/298; H02P7/2985; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3271649A
Cited
US3365642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |