Patent US3170103A successfully refreshed from Google Patents.
US3170103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous motor control
Assignee: Northrop Grumman Guidance and Electronics Co Inc
•
Filing: 1960-11-18
•
Granted: 1965-02-16
•
Expires: 1980-11-18
Abstract
No abstract record available.
Inventors
- 👤 Martin J Kutik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:10
CPC Classifications
H; H02; H02P; H02P25/00; H02P25/16; H02P25/32; H02P25/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A CONTROL SYSTEM OPERATING IN RESPONSE TO A VARIABLE-FREQUENCY INPUT SIGNAL, A WAVE DIFFERENTIATING NETWORK FOR SHARPENING THE PULSES OF THE INPUT SIGNAL, MEANS INCLUDING A MULTIVIBRATOR CONNECTED TO THE NETWORK FOR GENERATING PULSES OF UNIFORM SIZE AND DURATION AT THE FREQUENCY OF SAID INPUT SIGNALS PULSES AND INTERGRATING MEANS CONNECTED THERETO FOR CONVERTING SAID UNIFORM PULSES INTO A CONTINUOUS SIGNAL VARYING IN AMPLITUDE WITH THE FREQUENCY THEREOF.
Claim 2
Dependent Claim
69 words
IN A CONTROL SYSTEM OPERATING IN RESPONSE TO A VARIABLE-FREQUENCY INPUT SIGNAL, A WAVE DIFFERENTIATING NETWORK FOR SHARPENING THE PULSES OF THE INPUT SIGNAL, MEANS INCLUDING A MULTIVIBRATOR CONNECTED TO THE NETWORK FOR GENERATING PULSES OF UNIFORM SIZE AND DURATION AT THE FREQUENCY OF SAID INPUT SIGNALS PULSES AND INTERGRATING MEANS CONNECTED THERETO FOR CONVERTING SAID UNIFORM PULSES INTO A CONTINUOUS SIGNAL VARYING IN AMPLITUDE WITH THE FREQUENCY THEREOF.
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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |