US3210759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identification interrogation system
Assignee: General Electric Co
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Filing: 1963-10-04
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Granted: 1965-10-05
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Richard K Davis
- 👤 Francis M Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:05
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN IDENTIFICATION INTERROGATION SYSTEM COMPRISING A SIGNAL REPEATING DEVICE ASSOCIATED WITH EACH OBJECT TO BE IDENTIFIED HAVING A PLURALITY OF SELECTIVELY CONNECTED PIEZOELECTRIC ELEMENTS, EACH OF A DIFFERENT PRESELECTED FREQUENCY RESPONSE, AND MEANS FOR INTERROGATING SAID SIGNAL REPEATING DEVICE WITH A PLURALITY OF SIGNALS HAVING DIFFERENT FREQUENCY RANGES COVERING THE FREQUENCY RANGE OF SAID SIGNAL REPEATING DEVICES EACH OF THE DIFFERENT FREQUENCY RANGES OF SAID PLURALITY OF SIGNALS BEING A DIVISION OF THE FREQUENCY RANGE OF SAID SIGNAL REPEATING DEVICES TO OBTAIN A RESPONSE OF FREQUENCY IDENTIFIED SIGNALS.
Claim 2
Dependent Claim
88 words
AN IDENTIFICATION INTERROGATION SYSTEM COMPRISING A SIGNAL REPEATING DEVICE ASSOCIATED WITH EACH OBJECT TO BE IDENTIFIED HAVING A PLURALITY OF SELECTIVELY CONNECTED PIEZOELECTRIC ELEMENTS, EACH OF A DIFFERENT PRESELECTED FREQUENCY RESPONSE, AND MEANS FOR INTERROGATING SAID SIGNAL REPEATING DEVICE WITH A PLURALITY OF SIGNALS HAVING DIFFERENT FREQUENCY RANGES COVERING THE FREQUENCY RANGE OF SAID SIGNAL REPEATING DEVICES EACH OF THE DIFFERENT FREQUENCY RANGES OF SAID PLURALITY OF SIGNALS BEING A DIVISION OF THE FREQUENCY RANGE OF SAID SIGNAL REPEATING DEVICES TO OBTAIN A RESPONSE OF FREQUENCY IDENTIFIED SIGNALS.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |