US2688744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for controlling antenna characteristics in object locating systems of the reflection type
Assignee: Lanteris Space LLC
•
Filing: 1948-11-12
•
Granted: 1954-09-07
•
Expires: 1968-11-12
Abstract
No abstract record available.
Inventors
- 👤 David E Sunstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:03
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4017; H; H01; H01Q; H01Q1/00; H01Q1/40; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q25/00; H01Q25/002; H01Q3/00; H01Q3/02; H01Q3/04; H01Q3/44
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |