USRE27282E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gold cathode gas laser discharge tube
Assignee: —
•
Filing: 1970-06-11
•
Granted: 1972-02-15
•
Expires: 1990-06-11
Abstract
Abstract A COLD CATHODE GAS LASER DISCHARGE TUBE OF IMPROVED DESIGN IS DISCLOSED. A CYLINDRICAL CATHODE IS DISPOSED COAXIALLY ABOUT A CAPILLARY DISCHARGE TUBE. A SUBSTANTIAL LONGITUDINAL OVERLAP OF THE CAPILLARY DISCHARGE TUBE AND THE CATHODE PROVIDES A SHORTER STRUCTURE THAN AVAILABLE IN THE PRIOR ART, WHILE STILL ALLOWING A LARGE AREA CATHODE EMITTING SURFACE FOR LONG-LIFE OPERATION.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:28
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/038; H01J; H01J17/00; H01J17/38; H01J17/40; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0067
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) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |