US2741759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial antenna beam sharpening system
Assignee: Individual
•
Filing: 1952-10-14
•
Granted: 1956-04-10
•
Expires: 1972-10-14
Abstract
No abstract record available.
Inventors
- 👤 Carlyle V Parker
- 👤 Lionel L Cazenavette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:29
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/762; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2279031A
Cited
US2424079A
Cited
US2537102A
Cited
US2624873A
Cited
GB618519A
Cited
US2595141A
Cited
US2594916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |