Patent US3250945A successfully refreshed from Google Patents.
US3250945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interdigital wave structure having fingers connected to side walls by insulation means
Assignee: Raytheon Co
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Filing: 1961-12-08
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Granted: 1966-05-10
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Expires: 1981-12-08
Abstract
No abstract record available.
Inventors
- 👤 John G Sample
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:31
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN INTERDIGITAL WAVE PROPAGATING STRUCTURE COMPRISING: INTERLEAVED CONDUCTIVE ELEMENTS SUPPORTED AT ONE END BY AND EXTENDING FROM COEXTENSIVE CONDUCTIVE SURFACES AND ELECTRICALLY CONNECTED THERETO FOR FORMING A PATH FOR RADIO FREQUENCY WAVES; AND INSULATORS COUPLING THE REMAINING END OF EACH OF SAID ELEMENTS TO AN ADJACENT COEXTENSIVE CONDUCTIVE SURFACE.
Claim 2
Dependent Claim
49 words
AN INTERDIGITAL WAVE PROPAGATING STRUCTURE COMPRISING: INTERLEAVED CONDUCTIVE ELEMENTS SUPPORTED AT ONE END BY AND EXTENDING FROM COEXTENSIVE CONDUCTIVE SURFACES AND ELECTRICALLY CONNECTED THERETO FOR FORMING A PATH FOR RADIO FREQUENCY WAVES; AND INSULATORS COUPLING THE REMAINING END OF EACH OF SAID ELEMENTS TO AN ADJACENT COEXTENSIVE CONDUCTIVE SURFACE.
References Cited (Backward Citations)
US2546773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |