US3300735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shift beam tube neutralizer and modulator
Assignee: Varian Medical Systems Inc
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Filing: 1962-12-31
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Granted: 1967-01-24
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 George M W Badger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:19
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A CIRCUIT FOR ELIMINATING PHASE SHIFT DUE TO VELOCITY VARIATION ARISING FROM VARIATIONS IN BEAM DENSITY IN A BEAM TUBE HAVING AN ACCELERATING MEANS, A CATHODE AND A COLLECTOR, MEANS FOR APPLYING AN ACCELERATING VOLTAGE TO SAID ACCELERATING MEANS, AND FEEDBACK MEANS RESPONSIVE TO THE INTENSITY OF SAID BEAM CONNECTED BETWEEN SAID COLLECTOR AND SAID ACCELERATING MEANS FOR VARYING SAID ACCELERATING VOLTAGE IN DIRECT PROPORTION TO THE SAID VARIATIONS IN BEAM DENSITY.
Claim 2
Dependent Claim
72 words
A CIRCUIT FOR ELIMINATING PHASE SHIFT DUE TO VELOCITY VARIATION ARISING FROM VARIATIONS IN BEAM DENSITY IN A BEAM TUBE HAVING AN ACCELERATING MEANS, A CATHODE AND A COLLECTOR, MEANS FOR APPLYING AN ACCELERATING VOLTAGE TO SAID ACCELERATING MEANS, AND FEEDBACK MEANS RESPONSIVE TO THE INTENSITY OF SAID BEAM CONNECTED BETWEEN SAID COLLECTOR AND SAID ACCELERATING MEANS FOR VARYING SAID ACCELERATING VOLTAGE IN DIRECT PROPORTION TO THE SAID VARIATIONS IN BEAM DENSITY.
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) | 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 |