US3100554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decelerating circuit
Assignee: AT&T Inc
•
Filing: 1961-09-22
•
Granted: 1963-08-13
•
Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward R Doubek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:31
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
A DECELERATING CIRCUIT FOR OPERATING A BRAKE WHICH COMPRISES A BRAKE WINDING FOR OPERATING THE BRAKE WHEN ENERGIZED; DECELERATING MEANS FOR ENERGIZING THE BRAKE WINDING FOR A PRESCRIBED PERIOD OF TIME; MEANS FOR CONDITIONING THE DECELERATING MEANS FOR A DECELERATING OPERATION; MEANS FOR SELECTIVELY ASSOCIATING THE DECELERATING MEANS WITH EITHER THE BRAKE WINDING OR THE CONDITIONING MEANS; AND STOPPING MEANS FOR ENERGIZING THE BRAKE WINDING FOR AN INDEFINITE PERIOD OF TIME THROUGH CONTINUOUS ASSOCIATION WITH THE CONDITIONING MEANS.
References Cited (Backward Citations)
US2697802A
Cited
US2927474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |