Patent AU4786590A successfully refreshed from Google Patents.
US3001187A
Expired / Lapsed
US
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Microwave telereconnaissance
Assignee: Individual
•
Filing: 1955-10-21
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Granted: 1961-09-19
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Expires: 1975-10-21
Abstract
No abstract record available.
Inventors
- 👤 Jr John Hays Hammond
- 👤 Chaffee Emory Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:53
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB670960A
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US2506766A
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US2665619A
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US2678393A
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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) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |