US3049708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarization sensitive antenna system
Assignee: Unisys Corp
•
Filing: 1959-11-20
•
Granted: 1962-08-14
•
Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Berkowitz Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:10
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1773981A
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US2042302A
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US2464269A
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US2606248A
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US2647256A
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US2790169A
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US2736895A
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US2753551A
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US2814724A
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US2850624A
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US2930039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |