Patent US3353115A successfully refreshed from Google Patents.
US3353115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ruby laser systems
Assignee: Raytheon Co
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Filing: 1965-11-29
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Granted: 1967-11-14
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Expires: 1985-11-29
Abstract
No abstract record available.
Inventors
- 👤 Theodore H Maiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:27
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/48; G01S7/481; G01S7/4814; H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/042; H01S3/05; H01S3/08; H01S3/081; H01S3/083; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/0405; H01S3/0407; H01S3/0931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A THREE ENERGY LEVEL LASER COMPRISING: A RUBY HAVING ATOMS EXHIBITING A FIRST ENERGY LEVEL CORRESPONDING TO A GROUND ATOMIC STATE, A SUBSTANTIALLY DISCRETE SECOND ENERGY LEVEL ABOVE SAID GROUND STATE AND THIRD ENERGY LEVELS DEFINING A RELATIVELY BROADBAND ABSORPTION THIRD REGION EXTENDING ABOVE SAID SECOND LEVEL; A PUMPING SOURCE OF BROADBAND LIGHT ENERGY OPTICALLY COUPLED TO SAID RUBY FOR ILLUMINATING IT AND EXCITING ATOMS THEREOF TO EXHIBIT EXCITATION AT SAID THIRD ENERGY LEVELS FROM WHENCE THEY DECAY WITHOUT SUBSTANTIAL RADIATION LOSS TO SAID DISCRETE SECOND ENERGY LEVEL SO AS TO ESTABLISH A POPULATION INVERSION BETWEEN SAID DISCRETE SECOND ENERGY LEVEL AND SAID GROUND STATE;
Claim 2
Dependent Claim
105 words
A THREE ENERGY LEVEL LASER COMPRISING: A RUBY HAVING ATOMS EXHIBITING A FIRST ENERGY LEVEL CORRESPONDING TO A GROUND ATOMIC STATE, A SUBSTANTIALLY DISCRETE SECOND ENERGY LEVEL ABOVE SAID GROUND STATE AND THIRD ENERGY LEVELS DEFINING A RELATIVELY BROADBAND ABSORPTION THIRD REGION EXTENDING ABOVE SAID SECOND LEVEL; A PUMPING SOURCE OF BROADBAND LIGHT ENERGY OPTICALLY COUPLED TO SAID RUBY FOR ILLUMINATING IT AND EXCITING ATOMS THEREOF TO EXHIBIT EXCITATION AT SAID THIRD ENERGY LEVELS FROM WHENCE THEY DECAY WITHOUT SUBSTANTIAL RADIATION LOSS TO SAID DISCRETE SECOND ENERGY LEVEL SO AS TO ESTABLISH A POPULATION INVERSION BETWEEN SAID DISCRETE SECOND ENERGY LEVEL AND SAID GROUND STATE;
References Cited (Backward Citations)
US2929922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |