US3359554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar-beacon system with two-way communication capability
Assignee: Individual
•
Filing: 1966-09-19
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Granted: 1967-12-19
•
Expires: 1986-09-19
Abstract
No abstract record available.
Inventors
- 👤 Adolf-E Hoffmann-Heyden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:59
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A RADAR TRACKING SYSTEM EMPLOYING A BEACON AT THE TARGET, WHEREIN THE RADAR PERIODICALLY RADIATES AN INTERROGATING SIGNAL COMPRISING A TRACKING PULSE FOLLOWED AFTER A PREDETERMINED FIXED TIME INTERVAL BY AN IDENTIFICATION PULSE, AND WHEREIN THE BEACON REPLY SIMILARLY COMPRISES A TRACKING PULSE FOLLOWED AFTER SAID FIXED INTERVAL BY AN IDENTIFICATION PULSE, APPARATUS PROVIDING TWO-WAY COMMUNICATION BETWEEN SAID RADAR AND SAID BEACON, SAID APPARATUS COMPRISING: A SELECTIVELY OPERABLE MESSAGE SENDING MEANS AT SAID RADAR FOR CHANGING THE VALUE OF SAID
Claim 2
Dependent Claim
81 words
IN A RADAR TRACKING SYSTEM EMPLOYING A BEACON AT THE TARGET, WHEREIN THE RADAR PERIODICALLY RADIATES AN INTERROGATING SIGNAL COMPRISING A TRACKING PULSE FOLLOWED AFTER A PREDETERMINED FIXED TIME INTERVAL BY AN IDENTIFICATION PULSE, AND WHEREIN THE BEACON REPLY SIMILARLY COMPRISES A TRACKING PULSE FOLLOWED AFTER SAID FIXED INTERVAL BY AN IDENTIFICATION PULSE, APPARATUS PROVIDING TWO-WAY COMMUNICATION BETWEEN SAID RADAR AND SAID BEACON, SAID APPARATUS COMPRISING: A SELECTIVELY OPERABLE MESSAGE SENDING MEANS AT SAID RADAR FOR CHANGING THE VALUE OF SAID
References Cited (Backward Citations)
US3035260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |