US3594661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas laser tube
Assignee: Alcatel Lucent SAS
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Filing: 1968-11-27
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Granted: 1971-07-20
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Expires: 1988-11-27
Abstract
Abstract A gas laser comprises an outer tube and a plurality of graphic and ceramic rings placed inside the tube. The rings are in the form of a stack which is blocked on one end by lugs welded to the inner surface of the tube. The other end of the stack emerges into a free space formed by an enlarged area arranged in the inner surface of the tube and is held by a disc which is biased against lugs placed on the inner surface of the enlargement.
Inventors
- 👤 Maurice Roulot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:34
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/032; H01S3/0323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3493888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |