US2702858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rear paraboloid feed for round guide
Assignee: Individual
•
Filing: 1945-09-19
•
Granted: 1955-02-22
•
Expires: 1965-09-19
Abstract
No abstract record available.
Inventors
- 👤 Foster John Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:00
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q19/134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2054895A
Cited
US2206923A
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US2531455A
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US2509196A
Cited
US2429640A
Cited
US2406945A
Cited
US2411534A
Cited
US2427098A
Cited
US2422184A
Cited
US2497706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-21 | 1958-08-23 | 1959-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-21 | 1962-08-23 | 1963-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-21 | 1966-08-23 | 1967-02-22 | $7700.00 | Window Closed / Lapsed |