Patent US2421726A successfully refreshed from Google Patents.
US3166278A
Expired / Lapsed
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Control system
Assignee: Siemens and Halske AG
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Filing: 1961-01-30
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Granted: 1965-01-19
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Steinbach Karl
- 👤 Wentzel Peter
- 👤 Dinter Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:01
CPC Classifications
B; B61; B61L; B61L17/00; B61L17/02; B61L17/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN A SPEED CONTROL SYSTEM, THE COMBINATION WHICH COMPRISES; MEANS FOR CONTINUOUSLY MEASURING THE SPEED OF A VEHICLE; MEANS FOR PRODUCING AN OUTPUT VALUE WHICH IS A FUNCTION OF SAID SPEED; AND MEANS FOR COMPARING SAID OUTPUT VALUE TO A REFERENCE VALUE AND FOR PRODUCING A COMMAND SIGNAL ONLY WHEN SAID OUTPUT VALUE PASSES SAID REFERENCE VALUE AND REMAINS PAST SAID REFERENCE VALUE THROUGHOUT A TIME INTERVAL WHICH IS LONGER THAN A PREDETERMINED TEST INTERVAL.
Claim 2
Dependent Claim
75 words
IN A SPEED CONTROL SYSTEM, THE COMBINATION WHICH COMPRISES; MEANS FOR CONTINUOUSLY MEASURING THE SPEED OF A VEHICLE; MEANS FOR PRODUCING AN OUTPUT VALUE WHICH IS A FUNCTION OF SAID SPEED; AND MEANS FOR COMPARING SAID OUTPUT VALUE TO A REFERENCE VALUE AND FOR PRODUCING A COMMAND SIGNAL ONLY WHEN SAID OUTPUT VALUE PASSES SAID REFERENCE VALUE AND REMAINS PAST SAID REFERENCE VALUE THROUGHOUT A TIME INTERVAL WHICH IS LONGER THAN A PREDETERMINED TEST INTERVAL.
References Cited (Backward Citations)
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US2749537A
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US2859435A
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GB816163A
Cited
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Cited
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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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |