US3603895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas lasers with improved capillary tube
Assignee: Individual
•
Filing: 1968-05-06
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Granted: 1971-09-07
•
Expires: 1988-05-06
Abstract
Abstract A gas laser with improved heat flow from the inside of the capillary tube to the cooling fluid is obtained by using a metallic capillary tube internally coated with a dielectric film formed by the anodization of the internal wall of the metallic tube and by turbulating the flow of cooling fluid against the outside wall of the capillary tube.
Inventors
- 👤 Gustav K Medicus
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; H01S3/04; H01S3/041; H01S3/03; H01S3/0305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3243715A
Cited
US3386043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |