Patent US3227977A successfully refreshed from Google Patents.
US3227977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide shorting switch having asymmetrically located capacitive elements and shorting pins
Assignee: Individual
•
Filing: 1961-12-13
•
Granted: 1966-01-04
•
Expires: 1981-12-13
Abstract
No abstract record available.
Inventors
- 👤 Henry J Riblet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:25
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A MICROWAVE SWITCH FOR CONTROLLING THE FLOW OF MICROWAVE ENERGY WITHIN A PREDETERMINED BAND OF FREQUENCIES COMPRISING, A RECTANGULAR WAVEGUIDE SECTION HAVING AN AXIAL DIMENSION OF SUBSTANTIALLY ONE QUARTER WAVELENGTH OF SAID MICROWAVE ENERGY, RESONANT MEANS ASYMMETRICALLY ARRANGED WITHIN SAID WAVEGUIDE SECTION AND INCLUDING A PAIR OF SPACED CONDUCTIVE POSTS, MEANS WITHIN SAID QUARTER WAVELENGTH WAVEGUIDE SECTION FOR TUNING SAID WAVEGUIDE SECTION INCLUDING SAID RESONANT MEANS FOR OPERATION AS A BAND-PASS FILTER WITHIN SAID PREDETERMINED FREQUENCY BAND, SAID RESONANT MEANS BEING RESONANT AT A FREQUENCY OUTSIDE SAID FILTER PASS BAND, AND MEANS FOR ABRUPTLY AND SUBSTANTIALLY DETUNING SAID RESONENT ELEMENT.
Claim 2
Dependent Claim
100 words
A MICROWAVE SWITCH FOR CONTROLLING THE FLOW OF MICROWAVE ENERGY WITHIN A PREDETERMINED BAND OF FREQUENCIES COMPRISING, A RECTANGULAR WAVEGUIDE SECTION HAVING AN AXIAL DIMENSION OF SUBSTANTIALLY ONE QUARTER WAVELENGTH OF SAID MICROWAVE ENERGY, RESONANT MEANS ASYMMETRICALLY ARRANGED WITHIN SAID WAVEGUIDE SECTION AND INCLUDING A PAIR OF SPACED CONDUCTIVE POSTS, MEANS WITHIN SAID QUARTER WAVELENGTH WAVEGUIDE SECTION FOR TUNING SAID WAVEGUIDE SECTION INCLUDING SAID RESONANT MEANS FOR OPERATION AS A BAND-PASS FILTER WITHIN SAID PREDETERMINED FREQUENCY BAND, SAID RESONANT MEANS BEING RESONANT AT A FREQUENCY OUTSIDE SAID FILTER PASS BAND, AND MEANS FOR ABRUPTLY AND SUBSTANTIALLY DETUNING SAID RESONENT ELEMENT.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |