Patent US1085867A successfully refreshed from Google Patents.
Patent US3300741A successfully refreshed from Google Patents.
US3300741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide fitting for coupling helical elliptical waveguide
Assignee: Telefunken Patentverwertungs GmbH
•
Filing: 1965-05-12
•
Granted: 1967-01-24
•
Expires: 1985-05-12
Abstract
No abstract record available.
Inventors
- 👤 Hirsch Gerhard
- 👤 Krank Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:29
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/04; H01P1/042; H01P5/00; H01P5/08; H01P5/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A WAVEGUIDE FITTING FOR VERY HIGH POWER, WHEREIN A CORRUGATED WAVEGUIDE HAVING AN ELLIPTICAL OR ELLIPSELIKE CROSS-SECTION IS USED AND WHEREIN THE WAVEGUIDE IS HELD BY POSITIVE MEANS AND/OR BY ITS SHAPE BETWEEN TWO APPROPRIATELY SHAPED HALF SHELLS AND THE FLANGED END OF THE WAVEGUIDE IS PRESSED AGAINST THE END FACE OF A PLUG SECTION BY A PRESSURE EDGE ON THE HALF SHELL, THE IMPROVEMENT WHEREIN THE PLUG SECTION IS PROVIDED, AT THE FACE AGAINST WHICH THE FLANGED END OF THE WAVEGUIDE BEARS, WITH SUCH A RECESS THAT THE EFFECTIVE WAVEGUIDE CROSSSECTION IS ENLARGED IN THE REGION OF THE MAXIMUM LONGITUDINAL CURRENTS IN THE WALL OF THE WAVEGUIDE.
Claim 2
Dependent Claim
109 words
IN A WAVEGUIDE FITTING FOR VERY HIGH POWER, WHEREIN A CORRUGATED WAVEGUIDE HAVING AN ELLIPTICAL OR ELLIPSELIKE CROSS-SECTION IS USED AND WHEREIN THE WAVEGUIDE IS HELD BY POSITIVE MEANS AND/OR BY ITS SHAPE BETWEEN TWO APPROPRIATELY SHAPED HALF SHELLS AND THE FLANGED END OF THE WAVEGUIDE IS PRESSED AGAINST THE END FACE OF A PLUG SECTION BY A PRESSURE EDGE ON THE HALF SHELL, THE IMPROVEMENT WHEREIN THE PLUG SECTION IS PROVIDED, AT THE FACE AGAINST WHICH THE FLANGED END OF THE WAVEGUIDE BEARS, WITH SUCH A RECESS THAT THE EFFECTIVE WAVEGUIDE CROSSSECTION IS ENLARGED IN THE REGION OF THE MAXIMUM LONGITUDINAL CURRENTS IN THE WALL OF THE WAVEGUIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |