US3132312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave phase shifter adjusted by simultaneously altering two dimensions so as to keep frequency dependent phase dispersion constant
Assignee: North American Aviation Corp
•
Filing: 1960-10-03
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Granted: 1964-05-05
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Gerald D Carey
- 👤 Robert E Hovda
- 👤 Sam H Wong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:57
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A MICROWAVE PHASE SHIFTER COMPRISING A WAVEGUIDE SECTION; FIRST MEANS FOR VARYING THE EFFECTIVE WIDTH OF SAID WAVEGUIDE SECTIONS; SECOND MEANS FOR VARYING THE EFFECTIVE LENGTH OF SAID WAVEGUIDE SECTION; AND COUPLING MEANS FOR INTERCONNECTING SAID FIRST MEANS AND SAID SECOND MEANS
Claim 2
Dependent Claim
42 words
A MICROWAVE PHASE SHIFTER COMPRISING A WAVEGUIDE SECTION; FIRST MEANS FOR VARYING THE EFFECTIVE WIDTH OF SAID WAVEGUIDE SECTIONS; SECOND MEANS FOR VARYING THE EFFECTIVE LENGTH OF SAID WAVEGUIDE SECTION; AND COUPLING MEANS FOR INTERCONNECTING SAID FIRST MEANS AND SAID SECOND MEANS
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Cited
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Cited
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |