US2875434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflected wave detection system
Assignee: Westinghouse Canada Inc
•
Filing: 1955-06-09
•
Granted: 1959-02-24
•
Expires: 1975-06-09
Abstract
No abstract record available.
Inventors
- 👤 Lipinski Jedrzej
- 👤 Theodore C Cheston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:42
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/583; G01S13/584; G01S1/00; G01S1/02; G01S13/52; G01S13/522; G01S13/524; G01S13/53; G01S7/00; G01S7/02; G01S7/40; G01S7/4052; G01S7/4082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2581847A
Cited
US2422135A
Cited
GB592596A
Cited
US2612636A
Cited
US2678440A
Cited
US2621243A
Cited
US2695995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |