Patent US3208009A successfully refreshed from Google Patents.
US3208009A
Expired / Lapsed
US
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Laser with ytterbium activated glass sensitive element
Assignee: Individual
•
Filing: 1962-04-30
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Granted: 1965-09-21
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Howard W Etzel
- 👤 Harold W Gandy
- 👤 Robert J Ginther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:50
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17; C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/095; C03C4/00; C03C4/0071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN A LASER, A SOLID LUMINESCENT SENSITIVE ELEMENT OF OPTICAL REGENERATIVE CONFIGURATION AND CONSISTING ESSENTIALLY OF A CLEAR GLASS ACTIVATED WITH TRIVALENT YTTERBIUM IONS TO ABSORB OPTICAL PUMPING ENERGY IN THE NEAR INFRARED REGION AT WAVELENGTHS OF FROM 914 MU AND EXHIBIT STIMULATED EMISSION OF RADIATION IN THE NEAR INFRARED REGION IN A WAVEBAND OF ABOUT 6 MU WIDTH WHICH HAS ITS OPTICAL CENTER AT 1.015 MICRONS.
Claim 2
Dependent Claim
67 words
IN A LASER, A SOLID LUMINESCENT SENSITIVE ELEMENT OF OPTICAL REGENERATIVE CONFIGURATION AND CONSISTING ESSENTIALLY OF A CLEAR GLASS ACTIVATED WITH TRIVALENT YTTERBIUM IONS TO ABSORB OPTICAL PUMPING ENERGY IN THE NEAR INFRARED REGION AT WAVELENGTHS OF FROM 914 MU AND EXHIBIT STIMULATED EMISSION OF RADIATION IN THE NEAR INFRARED REGION IN A WAVEBAND OF ABOUT 6 MU WIDTH WHICH HAS ITS OPTICAL CENTER AT 1.015 MICRONS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |