US3241085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power optical maser using a circular ellipsoidal resonant cavity
Assignee: AT&T Inc
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Filing: 1962-03-23
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Granted: 1966-03-15
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Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Enrique A J Marcatili
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/0602; H01S3/08; H01S3/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A MASER: A CIRCULAR CAVITY HAVING A REFLECTIVE INNER SURFACE; SAID SURFACE BEING A PORTION OF AN ELLIPSOID OF REVOLUTION HAVING UNEQUAL MAJOR AND MINOR AXES AND EXTENDING SYMMETRICALLY ABOUT THE PLANE OF THE MINOR AXIS OF SAID ELLIPSOID; AND A NEGATIVE TEMPERATURE MEDIUM LOCATED WITHIN THE VOLUME DEFINED BY SAID CAVITY.
Claim 2
Dependent Claim
53 words
IN A MASER: A CIRCULAR CAVITY HAVING A REFLECTIVE INNER SURFACE; SAID SURFACE BEING A PORTION OF AN ELLIPSOID OF REVOLUTION HAVING UNEQUAL MAJOR AND MINOR AXES AND EXTENDING SYMMETRICALLY ABOUT THE PLANE OF THE MINOR AXIS OF SAID ELLIPSOID; AND A NEGATIVE TEMPERATURE MEDIUM LOCATED WITHIN THE VOLUME DEFINED BY SAID CAVITY.
References Cited (Backward Citations)
US1278026A
Cited
DE712329C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |