US3231892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna feed system simultaneously operable at two frequencies utilizing polarization independent frequency selective intermediate reflector
Assignee: Lanteris Space LLC
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Filing: 1962-06-26
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Granted: 1966-01-25
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Expires: 1982-06-26
Abstract
No abstract record available.
Inventors
- 👤 John L Matson
- 👤 Frank A O'nians
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:42
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/0006; H01Q15/0013
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
AN ANTENNA SYSTEM OPERABLE SIMULTANEOUSLY AT TWO DIFFERENT FREQUENCIES, COMPRISING (1) FIRST MEANS REFLECTIVE OF ELECTROMAGNETIC WAVES OF BOTH SAID FREQUENCIES, SAID MEANS HAVING A FIRST FOCUS, (2) SECOND MEANS TRANSMISSIVE OF ELECTROMAGNETIC WAVES OF ONE OF SAID FREQUENCIES AND ANY POLARIZATION AND REFLECTIVE OF ELECTROMAGNETIC WAVES OF THE OTHER OF SAID FREQUENCIES AND ANY POLARIZATION, SAID SECOND MEANS BEING SO POSITIONED WITH RESPECT TO SAID FIRST MEANS AND HAVING SUCH A CONFIGURTION
References Cited (Backward Citations)
GB439608A
Cited
DE861718C
Cited
US2342721A
Cited
US2423648A
Cited
US2763860A
Cited
US2840820A
Cited
US3025515A
Cited
US2870444A
Cited
US2972743A
Cited
US3148370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |