US3118139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed measuring apparatus
Assignee: Specialties Development Corp
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Filing: 1959-11-25
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Granted: 1964-01-14
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Expires: 1979-11-25
Abstract
No abstract record available.
Inventors
- 👤 Durstewitz Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:14
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60; G01S13/003; G01S13/88; G01S13/91; G01S13/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
SPEED MEASURING APPARATUS MOUNTED ON A BODY MOVING WITH RESPECT TO AN OBJECT FOR DETECTING THE SPEED OF A SECOND MOVING BODY RELATIVE TO THE OBJECT INCLUDING IN COMBINATION MEANS FOR RADIATING ENERGY AT A PREDETERMINED FREQUENCY TOWARD THE SECOND BODY AND TOWARD THE OBJECT AND FOR RECEIVING THE RADIATIONS REFLECTED FROM THE SECOND BODY AND FROM THE OBJECT, MEANS FOR COMPARING SAID RECEIVED RADIATIONS AND PRODUCING A SIGNAL HAVING A FREQUENCY EQUAL TO THE DIFFERENCE BETWEEN THE FREQUENCY OF THE RECEIVED RADIATIONS REFLECTED FROM THE OBJECT AND THE FREQUENCY OF THE RECEIVED RADIATIONS, REFLECTED FROM THE SECOND BODY, AND MEANS RESPONSIVE TO SAID DIFFERENCE FREQUENCY SIGNAL FOR GIVING AN INDICATION OF THE SPEED OF THE SECOND BODY WITH RESPECT TO THE OBJECT.
Claim 2
Dependent Claim
123 words
SPEED MEASURING APPARATUS MOUNTED ON A BODY MOVING WITH RESPECT TO AN OBJECT FOR DETECTING THE SPEED OF A SECOND MOVING BODY RELATIVE TO THE OBJECT INCLUDING IN COMBINATION MEANS FOR RADIATING ENERGY AT A PREDETERMINED FREQUENCY TOWARD THE SECOND BODY AND TOWARD THE OBJECT AND FOR RECEIVING THE RADIATIONS REFLECTED FROM THE SECOND BODY AND FROM THE OBJECT, MEANS FOR COMPARING SAID RECEIVED RADIATIONS AND PRODUCING A SIGNAL HAVING A FREQUENCY EQUAL TO THE DIFFERENCE BETWEEN THE FREQUENCY OF THE RECEIVED RADIATIONS REFLECTED FROM THE OBJECT AND THE FREQUENCY OF THE RECEIVED RADIATIONS, REFLECTED FROM THE SECOND BODY, AND MEANS RESPONSIVE TO SAID DIFFERENCE FREQUENCY SIGNAL FOR GIVING AN INDICATION OF THE SPEED OF THE SECOND BODY WITH RESPECT TO THE OBJECT.
References Cited (Backward Citations)
US2422064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |