Patent US2717316A successfully refreshed from Google Patents.
Patent US3340416A successfully refreshed from Google Patents.
US3340416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation generator having a conductive coating on a piezoelectric diffraction grating for varying the output frequency
Assignee: Xerox Corp
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Filing: 1964-12-28
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Granted: 1967-09-05
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 James E Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A HIGH FREQUENCY RADIATION GENERATING APPARATUS COMPRISING: (A) A DIFFRACTION GRATING FORMED FROM PARALLEL SPACED LINES RULED UPON THE FACE OF A PIEZOELECTRIC PLATE, SAID FACE CARRYING A CONDUCTIVE COATING THEREON; (B) A CONDUCTIVE METALLIC PLATE POSITIONED TO REINFORCE STANDING ELECTROMAGNETIC WAVES IN THE SPACE BETWEEN SAID REFLECTOR AND SAID DIFFRACTION GRATING; (C) MEANS TO DEVELOP A BEAM OF ELECTRONS AND TO DIRECT SAID BEAM THROUGH SAID SPACE; (D) MEANS TO APPLY AN ELECTRICAL STRESS TO SAID PIEZOELECTRIC PALTE SO THAT SAID PLATE WILL VARY DIMENSIONALLY IN A DIRECTION PERPENDICULAR TO SAID GRATING LINES, AND THEREBY CHANGE THE SPACING OF SAID GRATING.
Claim 2
Dependent Claim
102 words
A HIGH FREQUENCY RADIATION GENERATING APPARATUS COMPRISING: (A) A DIFFRACTION GRATING FORMED FROM PARALLEL SPACED LINES RULED UPON THE FACE OF A PIEZOELECTRIC PLATE, SAID FACE CARRYING A CONDUCTIVE COATING THEREON; (B) A CONDUCTIVE METALLIC PLATE POSITIONED TO REINFORCE STANDING ELECTROMAGNETIC WAVES IN THE SPACE BETWEEN SAID REFLECTOR AND SAID DIFFRACTION GRATING; (C) MEANS TO DEVELOP A BEAM OF ELECTRONS AND TO DIRECT SAID BEAM THROUGH SAID SPACE; (D) MEANS TO APPLY AN ELECTRICAL STRESS TO SAID PIEZOELECTRIC PALTE SO THAT SAID PLATE WILL VARY DIMENSIONALLY IN A DIRECTION PERPENDICULAR TO SAID GRATING LINES, AND THEREBY CHANGE THE SPACING OF SAID GRATING.
References Cited (Backward Citations)
US3259014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |