US3265978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D. c. pumped quadrupole parametric amplifier
Assignee: Westinghouse Electric Corp
•
Filing: 1959-08-17
•
Granted: 1966-08-09
•
Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Philippe A Clavier
- 👤 Daniel C Buck
- 👤 Carl H Scullin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:14
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A MICROWAVE AMPLIFIER COMPRISING MEANS FOR PROJECTING AN ELECTRON BEAM ALONG AN AXIS, A SIGNAL INPUT COUPLING MEANS, AN INTERACTION REGION, AND A SIGNAL OUTPUT COUPLING MEANS SPACED ALONG SAID AXIS, AND INTERACTION REGION BOUNDED BY A PLURALITY OF ELECTRODES SYMMETRICALLY SPACED ABOUT SAID AXIS, SAID ELECTRODES ARRANGED IN A PLURALITY OF GROUPS SPACED END TO END ALONG SAID INTERACTION REGION, SAID GROUPS ROTATED ABOUT THE AXIS PROGRESSIVELY AS THE INTERACTION REGION IS TRAVERSED, ELECTROSTATIC POTENTIALS APPLIED TO EACH OF SAID GROUPS TO PRODUCE A SPIRAL OUTWARDLY DIRECTED ELECTRIC FIELD WITHIN SAID INTERACTION REGION, A MAGNETIC FIELD PARALLEL TO SAID AXIS, THE SIGNAL INPUT COUPLER RESPONSIVE TO AN INPUT SIGNAL TO PROVIDE DEFLECTIONS OF SAID BEAM FROM SAID AXIS, SAID MAGNETIC FIELD ACTING ON SAID ELECTRON BEAM TO
Claim 2
Dependent Claim
128 words
A MICROWAVE AMPLIFIER COMPRISING MEANS FOR PROJECTING AN ELECTRON BEAM ALONG AN AXIS, A SIGNAL INPUT COUPLING MEANS, AN INTERACTION REGION, AND A SIGNAL OUTPUT COUPLING MEANS SPACED ALONG SAID AXIS, AND INTERACTION REGION BOUNDED BY A PLURALITY OF ELECTRODES SYMMETRICALLY SPACED ABOUT SAID AXIS, SAID ELECTRODES ARRANGED IN A PLURALITY OF GROUPS SPACED END TO END ALONG SAID INTERACTION REGION, SAID GROUPS ROTATED ABOUT THE AXIS PROGRESSIVELY AS THE INTERACTION REGION IS TRAVERSED, ELECTROSTATIC POTENTIALS APPLIED TO EACH OF SAID GROUPS TO PRODUCE A SPIRAL OUTWARDLY DIRECTED ELECTRIC FIELD WITHIN SAID INTERACTION REGION, A MAGNETIC FIELD PARALLEL TO SAID AXIS, THE SIGNAL INPUT COUPLER RESPONSIVE TO AN INPUT SIGNAL TO PROVIDE DEFLECTIONS OF SAID BEAM FROM SAID AXIS, SAID MAGNETIC FIELD ACTING ON SAID ELECTRON BEAM TO
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |