US3588737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally stabilized laser
Assignee: ELECTRO NUCLEAR LAB Inc
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Filing: 1968-04-22
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Granted: 1971-06-28
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Expires: 1988-04-22
Abstract
Abstract A LASER IS DISCLOSED HAVING AN IMPERFORATE TUBULAR BODY WHICH IS ONE EMBODIMENT IS DISCLOSED AS HAVING A COMPOSITION INCLUDING ASBESTOS WITH A LOW THERMAL COEFFICIENT OF EXPANSION AND A LOW THERMAL COEFFICIENT OF TRANSMISSION OF HEAT, AND IN ANOTHER EMBODIMENT IS DISCLOSED AS AN MULTIWALL METAL IMPERFORATE BODY HAVING AN AIRTIGHT SPACE BETWEEN THE TWO WALLS. IN OPERATION THE LASER PLASMA TUBE STABILIZES AT A HIGHER TEMPERATURE THAN THE PRIOR ART UNITS WITH A PERFORATED BODY, BUT A TRANSLATION (POINTING STABILITY) OF 0.0001 INCHES 1/3 INCHES/HOUR CAN BE ACHIEVED.
Inventors
- 👤 Ken Tang Chow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:41
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/041; H01S3/10; H01S3/13; H01S3/139
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |