Patent US3609587A successfully refreshed from Google Patents.
US3609587A
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US
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Gas laser with adjustable mirror
Assignee: Raytheon Co
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Filing: 1969-10-27
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Granted: 1971-09-28
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Expires: 1989-10-27
Abstract
Abstract A gas laser having an elongated plasma tube with a fixed mirror at one end and an adjustable mirror at the other end. An isolation element such as a Brewster window is disposed in the plasma tube near the adjustable mirror to create a gastight discharge compartment between itself and the fixed mirror while maintaining the regenerative path defined by and extending between the mirrors. An active laser gas is disposed in the discharge compartment and appropriate means for exciting the gas to a lasing state is provided whereby alignment of the mirrors may be accomplished while the laser is in operation.
Inventors
- 👤 William P Kolb Jr
- 👤 Dale E Crane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:51
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |