Patent US2275553A successfully refreshed from Google Patents.
US3173139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar systems
Assignee: Raytheon Co
•
Filing: 1962-07-23
•
Granted: 1965-03-09
•
Expires: 1982-07-23
Abstract
No abstract record available.
Inventors
- 👤 George R Welti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:03
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28; G01S13/284; G01S13/288
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A SIGNAL SYSTEM COMPRISING: MEANS FOR GENERATING SUCCESSIVE TRAINS FO ENCODED SIGNALS OF WHICH DIFERENT ALTERNATE GROUPS OF TRAIN ARE ENCODED DIFFERENTLY; MEANS FOR TRANSMITTING SAID SUCCESSIVE TRAINS OF SIGNALS; MEANS FOR RECEIVING AND AUTOCORRELATING SAID TRANSMITTED SIGNALS; AND MEANS COUPLED TO AN OUTPUT OF SAID AUTOCORRELATING MEANS FOR CANCELLING SOME AUTOCORRELATION PRODUCTS OF SUCCESSIVE TRAINS AND FOR RETAINING OTHER PRODUCTS.
Claim 2
Dependent Claim
61 words
A SIGNAL SYSTEM COMPRISING: MEANS FOR GENERATING SUCCESSIVE TRAINS FO ENCODED SIGNALS OF WHICH DIFERENT ALTERNATE GROUPS OF TRAIN ARE ENCODED DIFFERENTLY; MEANS FOR TRANSMITTING SAID SUCCESSIVE TRAINS OF SIGNALS; MEANS FOR RECEIVING AND AUTOCORRELATING SAID TRANSMITTED SIGNALS; AND MEANS COUPLED TO AN OUTPUT OF SAID AUTOCORRELATING MEANS FOR CANCELLING SOME AUTOCORRELATION PRODUCTS OF SUCCESSIVE TRAINS AND FOR RETAINING OTHER PRODUCTS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |