US3430158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical maser having non-parallel brewster surfaces
Assignee: AT&T Inc
•
Filing: 1963-08-21
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Granted: 1969-02-25
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Expires: 1983-08-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Fox
- 👤 Lynden U Kibler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:41
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/0602; H01S3/0615
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
AN NEGATIVE TEMPERATURE DEVICE FOR USE IN AN OPTICAL MASER COMPRISING A SAMPLE OF AN ACTIVE MATERIAL, SAID SAMPLE HAVING FIRST AND SECOND TRANSPARENT NON-PARALLEL SURFACES DEFINING AN ELONGATED LIGHT BEAM PATH THERE-
Claim 2
Dependent Claim
33 words
AN NEGATIVE TEMPERATURE DEVICE FOR USE IN AN OPTICAL MASER COMPRISING A SAMPLE OF AN ACTIVE MATERIAL, SAID SAMPLE HAVING FIRST AND SECOND TRANSPARENT NON-PARALLEL SURFACES DEFINING AN ELONGATED LIGHT BEAM PATH THERE-
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) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |