US3248729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monitoring system for distance measuring equipment
Assignee: Allard Way Holdings Ltd
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Filing: 1964-01-15
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Granted: 1966-04-26
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Expires: 1984-01-15
Abstract
No abstract record available.
Inventors
- 👤 Howard Ronald Walter
- 👤 Bevan Frank Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4021; Y; Y10; Y10S; Y10S367/00; Y10S367/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A DISTANCE MEASURING EQUIPMENT OF THE KIND COMPRISING A TRANSMITTER FOR RADIATING ENERGY, A FIRST RECEIVER FOR DETECTING ENERGY REFLECTED FROM A SURFACE IRRADIATED BY THE RADIATED ENERGY AND FIRST MEANS FOR COMPARING THE TRANSMITTED AND RECEIVED ENERGY TO DERIVE A FIRST SIGNAL HAVING A PARAMETER REPRESENTING THE TIME INTERVAL BETWEEN THE TRANSMISSION OF ENERGY AND RECEIPT OF THE REFLECTED ENERGY; THE IMPROVEMENT WHICH COMPRISES A SECOND RECEIVER FOR DETECTING THE REFLECTED ENERGY, DELAY MEANS ASSOCIATED WITH SAID SECOND RECEIVER TO DELAY BY A PREDETERMINED PERIOD OF TIME THE DETECTION OF THE REFLECTED ENERGY BY SAID SECOND RECEIVER, SECOND MEANS FOR COMPARING THE
Claim 2
Dependent Claim
104 words
IN A DISTANCE MEASURING EQUIPMENT OF THE KIND COMPRISING A TRANSMITTER FOR RADIATING ENERGY, A FIRST RECEIVER FOR DETECTING ENERGY REFLECTED FROM A SURFACE IRRADIATED BY THE RADIATED ENERGY AND FIRST MEANS FOR COMPARING THE TRANSMITTED AND RECEIVED ENERGY TO DERIVE A FIRST SIGNAL HAVING A PARAMETER REPRESENTING THE TIME INTERVAL BETWEEN THE TRANSMISSION OF ENERGY AND RECEIPT OF THE REFLECTED ENERGY; THE IMPROVEMENT WHICH COMPRISES A SECOND RECEIVER FOR DETECTING THE REFLECTED ENERGY, DELAY MEANS ASSOCIATED WITH SAID SECOND RECEIVER TO DELAY BY A PREDETERMINED PERIOD OF TIME THE DETECTION OF THE REFLECTED ENERGY BY SAID SECOND RECEIVER, SECOND MEANS FOR COMPARING THE
References Cited (Backward Citations)
US2405238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |