Patent US3382454A successfully refreshed from Google Patents.
US3382454A
Expired / Lapsed
US
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Low loss injection laser
Assignee: Raytheon Co
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Filing: 1963-11-12
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Granted: 1968-05-07
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Wade Glen
- 👤 Samuel R Steele
- 👤 Wolfgang M Feist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:04
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/30; H01S5/02; H01S5/028; H01S5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A SEMICONDUCTOR LASER COMPRISING A SANDWICH INCLUDING A BODY OF DEGENERATIVELY DOPED SEMICONDUCTOR MATERIAL HAVING SIDE SURFACES AND OPPOSED END SURFACES, A PAIR OF THIN METAL FILMS OVERLYING OPPOSED SIDE SURFACES OF SAID BODY, A PAIR OF LAYERS OF INSULATING MATERIAL INTERPOSED BETWEEN SAID BODY AND RESPECTIVE METAL FILMS ELECTRICAL CIRCUIT MEANS FOR CONNECTING SAID METAL FILMS AND SAID BODY TO A SOURCE OF FORWARD BIAS VOLTAGE FOR CAUSING ELECTRONS FROM THE METAL FILMS TO TUNNEL
Claim 2
Dependent Claim
76 words
A SEMICONDUCTOR LASER COMPRISING A SANDWICH INCLUDING A BODY OF DEGENERATIVELY DOPED SEMICONDUCTOR MATERIAL HAVING SIDE SURFACES AND OPPOSED END SURFACES, A PAIR OF THIN METAL FILMS OVERLYING OPPOSED SIDE SURFACES OF SAID BODY, A PAIR OF LAYERS OF INSULATING MATERIAL INTERPOSED BETWEEN SAID BODY AND RESPECTIVE METAL FILMS ELECTRICAL CIRCUIT MEANS FOR CONNECTING SAID METAL FILMS AND SAID BODY TO A SOURCE OF FORWARD BIAS VOLTAGE FOR CAUSING ELECTRONS FROM THE METAL FILMS TO TUNNEL
References Cited (Backward Citations)
US3204159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |