US3265988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting metallic film maser
Assignee: AT&T Inc
•
Filing: 1963-08-13
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Granted: 1966-08-09
•
Expires: 1983-08-13
Abstract
No abstract record available.
Inventors
- 👤 Aly H Dayem
- 👤 Ping K Tien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:27
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A MASER COMPRISING: A RESONANT CAVITY; A SOURCE OF RADIANT ENERGY FOR ENERGIZING SAID CAVITY; SAID SOURCE COMPRISING A MULTILAYER STRUCTURE INCLUDING FIRST, SECOND AND THIRD CONDUCTIVELY INSULATED SUPERCONDUCTING STRIPS; ELECTRICAL BIASING MEANS FOR INDUCING ELECTRON TUNNELING FROM SAID FIRST STRIP TO SAID SECOND STRIP AND FROM SAID SECOND STRIP TO SAID THIRD STRIP; AND MEANS FOR TUNING SAID CAVITY TO THE FREQUENCY CORRESPONDING TO THE FORBIDDEN ENERGY GAP OF SAID SECOND SUPERCONDUCTING STRIP.
Claim 2
Dependent Claim
74 words
A MASER COMPRISING: A RESONANT CAVITY; A SOURCE OF RADIANT ENERGY FOR ENERGIZING SAID CAVITY; SAID SOURCE COMPRISING A MULTILAYER STRUCTURE INCLUDING FIRST, SECOND AND THIRD CONDUCTIVELY INSULATED SUPERCONDUCTING STRIPS; ELECTRICAL BIASING MEANS FOR INDUCING ELECTRON TUNNELING FROM SAID FIRST STRIP TO SAID SECOND STRIP AND FROM SAID SECOND STRIP TO SAID THIRD STRIP; AND MEANS FOR TUNING SAID CAVITY TO THE FREQUENCY CORRESPONDING TO THE FORBIDDEN ENERGY GAP OF SAID SECOND SUPERCONDUCTING STRIP.
References Cited (Backward Citations)
US3178594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |