US3267480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarization converter
Assignee: Hazeltine Research Inc
•
Filing: 1961-02-23
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Granted: 1966-08-16
•
Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 David S Lerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:49
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/24; H01Q15/242; H01Q15/244
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A POLARIZATION CONVERTER FOR ELECTROMAGNETIC ENERGY COMPRISING: A PLURALITY OF TRANSMISSIVE BIREFRINGENT REPETITIVE SHEET ARRAYS OF CONDUCTIVE ELEMENTS, INCLUDING ELEMENTS WHICH ARE DISCONTINUOUS IN ALL DIRECTIONS IN COMBINATION WITH ELEMENTS WHICH ARE CONTINUOUS IN ONE DIRECTION; AND MEANS FOR SUPPORTING SAID SHEET ARRAYS; SAID CONVERTER INCLUDING SHEET ARRAYS OF AT LEAST TWO DIFFERENT CONFIGURATIONS.
Claim 2
Dependent Claim
54 words
A POLARIZATION CONVERTER FOR ELECTROMAGNETIC ENERGY COMPRISING: A PLURALITY OF TRANSMISSIVE BIREFRINGENT REPETITIVE SHEET ARRAYS OF CONDUCTIVE ELEMENTS, INCLUDING ELEMENTS WHICH ARE DISCONTINUOUS IN ALL DIRECTIONS IN COMBINATION WITH ELEMENTS WHICH ARE CONTINUOUS IN ONE DIRECTION; AND MEANS FOR SUPPORTING SAID SHEET ARRAYS; SAID CONVERTER INCLUDING SHEET ARRAYS OF AT LEAST TWO DIFFERENT CONFIGURATIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |