Patent US3290762A successfully refreshed from Google Patents.
US3290762A
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US
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Method of manufacturing flexible waveguide
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1964-09-11
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Granted: 1966-12-13
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Expires: 1984-09-11
Abstract
No abstract record available.
Inventors
- 👤 Ayuzawa Mitsumasa
- 👤 Sawada Sumio
- 👤 Shibukawa Toru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:53
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/12; H01P3/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF MANUFACTURING A SEAMLESS BELLOWS TYPE FLEXIBLE WAVE GUIDE COMPRISING THE STEPS OF PROVIDING A TRANSVERSELY CORRUGATED DISPOSABLE MANDREL WITH AN ELECTROCONDUCTIVE SURFACE, ELECTROPLATING THE CORRUGATED EXTERIOR OF THE MANDREL, PROVIDING A PAIR OF CONNECTING FLANGES WITH COAXIAL PORTIONS TO ENGAGE THE ELECTROPLATING AT EACH END OF THE MANDREL, SECURING THE COAXIAL PORTION OF EACH CONNECTING FLANGE TO THE OPPOSITE ENDS OF THE ELECTROPLATE, MOLDING A CONTINUOUS TIGHTLY ADHERING ELASTOMER COATING AROUND AND JOINING EACH COAXIAL FLANGE PORTION AND THE INTERMEDIATE CORRUGATED ELECTROPLATE AND REMOVING THE DISPOSABLE CORRUGATED MANDREL
Claim 2
Independent Claim
91 words
THE METHOD OF MANUFACTURING A SEAMLESS BELLOWS TYPE FLEXIBLE WAVE GUIDE COMPRISING THE STEPS OF PROVIDING A TRANSVERSELY CORRUGATED DISPOSABLE MANDREL WITH AN ELECTROCONDUCTIVE SURFACE, ELECTROPLATING THE CORRUGATED EXTERIOR OF THE MANDREL, PROVIDING A PAIR OF CONNECTING FLANGES WITH COAXIAL PORTIONS TO ENGAGE THE ELECTROPLATING AT EACH END OF THE MANDREL, SECURING THE COAXIAL PORTION OF EACH CONNECTING FLANGE TO THE OPPOSITE ENDS OF THE ELECTROPLATE, MOLDING A CONTINUOUS TIGHTLY ADHERING ELASTOMER COATING AROUND AND JOINING EACH COAXIAL FLANGE PORTION AND THE INTERMEDIATE CORRUGATED ELECTROPLATE AND REMOVING THE DISPOSABLE CORRUGATED MANDREL
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |