US3237134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave filter
Assignee: General Electric Co
•
Filing: 1963-03-26
•
Granted: 1966-02-22
•
Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Vernon G Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:22
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/213; H01P1/2138; H01P1/207; H01P1/209
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A FILTER FOR TRANSMITTING, WITHOUT SUBSTANTIAL ATTENUATION, ELECTROMAGNETIC WAVES HAVING FREQUENCIES INSIDE A FREQUENCY RANGE DEFINED BY A LOWER FREQUENCY AND AN UPPER SECOND FREQUENCY, AND FOR SUBSTANTIALLY ATTENUATING ELECTROMAGNETIC WAVES HAVING FREQUENCIES OUTSIDE SAID RANGE, COMPRISING: FIRST AND SECOND WAVEGUIDE SECTIONS; A PLURALITY OF WAVEGUIDING SEGMENTS COUPLING SAID WAVEGUIDING SECTIONS TOGETHER; A PLURALITY OF BAND-PASS FILTER MEMBERS, EACH COMPRISING A PLURALITY OF SPACED REACTIVE ELEMENTS, FOR TRANSMITTING WITHOUT SUBSTANTIAL ATTENUATION ELECTROMAGNETIC WAVES HAVING FREQUENCIES INSIDE SAID RANGE; AND,
Claim 2
Dependent Claim
79 words
A FILTER FOR TRANSMITTING, WITHOUT SUBSTANTIAL ATTENUATION, ELECTROMAGNETIC WAVES HAVING FREQUENCIES INSIDE A FREQUENCY RANGE DEFINED BY A LOWER FREQUENCY AND AN UPPER SECOND FREQUENCY, AND FOR SUBSTANTIALLY ATTENUATING ELECTROMAGNETIC WAVES HAVING FREQUENCIES OUTSIDE SAID RANGE, COMPRISING: FIRST AND SECOND WAVEGUIDE SECTIONS; A PLURALITY OF WAVEGUIDING SEGMENTS COUPLING SAID WAVEGUIDING SECTIONS TOGETHER; A PLURALITY OF BAND-PASS FILTER MEMBERS, EACH COMPRISING A PLURALITY OF SPACED REACTIVE ELEMENTS, FOR TRANSMITTING WITHOUT SUBSTANTIAL ATTENUATION ELECTROMAGNETIC WAVES HAVING FREQUENCIES INSIDE SAID RANGE; AND,
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |