US3089104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for independent control of ellipticity and orientation of polarized electromagnetic waves
Assignee: Individual
•
Filing: 1960-10-31
•
Granted: 1963-05-07
•
Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Philip J Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:20
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/165; H01P1/175
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
IN COMBINATION, A DUAL MODE TRANSDUCER, AN OMNIPOLARIZATION COUPLING DEVICE, FIRST AND SECOND HALF WAVE BIREFRINGENT ELEMENTS DISPOSED BETWEEN SAID TRANSDUCER AND SAID DEVICE, AND A QUARTER WAVE BIREFRINGENT ELEMENT INTERMEDIATE SAID FIRST AND SECOND ELEMENTS.
Claim 2
Dependent Claim
36 words
IN COMBINATION, A DUAL MODE TRANSDUCER, AN OMNIPOLARIZATION COUPLING DEVICE, FIRST AND SECOND HALF WAVE BIREFRINGENT ELEMENTS DISPOSED BETWEEN SAID TRANSDUCER AND SAID DEVICE, AND A QUARTER WAVE BIREFRINGENT ELEMENT INTERMEDIATE SAID FIRST AND SECOND ELEMENTS.
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |