Patent US3569862A successfully refreshed from Google Patents.
US3569862A
Expired / Lapsed
US
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Gas laser exciter
Assignee: Individual
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Filing: 1969-06-02
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Granted: 1971-03-09
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Expires: 1989-06-02
Abstract
Abstract A gas laser having a power supply consisting of an overdriven oscillator of relatively low fundamental frequency with an output rich in harmonics. The harmonic content of the power supply output helps to initiate the excitation of the laser; after the gas has been excited the waveform of the power supply output becomes more nearly sinusoidal.
Inventors
- 👤 George R Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:44
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/097; H01S3/0975
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A gas laser as claimed in claim 1 wherein said oscillator is of the sinusoidal type and wherein the fundamental frequency of said oscillator is about 30 kHz.
References Cited (Backward Citations)
US3351870A
Cited
US3424946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |