US2733437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
maeder
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:28
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/20; H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932469A
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US2028498A
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US2055883A
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US2130913A
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US2138966A
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US2231929A
Cited
US2227598A
Cited
US2189549A
Cited
US2225046A
Cited
US2449976A
Cited
US2468032A
Cited
US2419999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |