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US3382452A
Expired / Lapsed
US
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Frequency stabilization apparatus
Assignee: Varian Medical Systems Inc
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Filing: 1965-04-15
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Granted: 1968-05-07
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Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 Robert C Rempel
- 👤 Byron E Swartz
- 👤 Martin E Packard
- 👤 Robert J Rorden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:20
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A FREQUENCY STABILIZATION APPARATUS INCLUDING A LIGHT SOURCE FOR PROJECTING A LIGHT BEAM, A LIGHT ABSORPTION CELL ENCLOSED WITHIN A CAVITY RESONATOR FOR INTERCEPTING SAID LIGHT BEAM, A LIGHT INTENSITY MEANS FOR DETECTING THE INTENSITY OF THE LIGHT BEAM AFTER PASSING THROUGH SAID CELL, AN OSCILLATOR FOR GENERATING A RADIO FREQUENCY THAT IS COUPLED TO THE CAVITY RESONATOR, CIRCUIT MEANS FOR PRODUCING A SQUARE WAVE FUNCTION, FILTER MEANS FOR CHANGING SAID
Claim 2
Dependent Claim
71 words
A FREQUENCY STABILIZATION APPARATUS INCLUDING A LIGHT SOURCE FOR PROJECTING A LIGHT BEAM, A LIGHT ABSORPTION CELL ENCLOSED WITHIN A CAVITY RESONATOR FOR INTERCEPTING SAID LIGHT BEAM, A LIGHT INTENSITY MEANS FOR DETECTING THE INTENSITY OF THE LIGHT BEAM AFTER PASSING THROUGH SAID CELL, AN OSCILLATOR FOR GENERATING A RADIO FREQUENCY THAT IS COUPLED TO THE CAVITY RESONATOR, CIRCUIT MEANS FOR PRODUCING A SQUARE WAVE FUNCTION, FILTER MEANS FOR CHANGING SAID
References Cited (Backward Citations)
US2883540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |