Patent US3317848A successfully refreshed from Google Patents.
US3317848A
Expired / Lapsed
US
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Non-reciprocal light amplifier
Assignee: International Business Machines Corp
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Filing: 1964-01-20
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Granted: 1967-05-02
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Robert W Keyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:13
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/3523; H; H01; H01S; H01S5/00; H01S5/50; H01S5/40; H01S5/4025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A LIGHT DIODE COMPRISING A LINEAR AMPLIFIER OF LIGHT AND A NON-LINEAR ABSORBER ELEMENT OF LIGHT, THE LATTER BEING IN LIGHT CONDUCTIVITY RELATIONSHIP WITH SAID LINEAR AMPLIFIER OF LIGHT AND HAVING NO ELECTRICAL ENERGY APPLIED THERETO TO ALTER ITS ABSORPTIVE CHARACTERISTICS, AND MEANS FOR SENDING LIGHT IN OPPOSITE DIRECTIONS THROUGH SAID LIGHT DIODE.
Claim 2
Dependent Claim
53 words
A LIGHT DIODE COMPRISING A LINEAR AMPLIFIER OF LIGHT AND A NON-LINEAR ABSORBER ELEMENT OF LIGHT, THE LATTER BEING IN LIGHT CONDUCTIVITY RELATIONSHIP WITH SAID LINEAR AMPLIFIER OF LIGHT AND HAVING NO ELECTRICAL ENERGY APPLIED THERETO TO ALTER ITS ABSORPTIVE CHARACTERISTICS, AND MEANS FOR SENDING LIGHT IN OPPOSITE DIRECTIONS THROUGH SAID LIGHT DIODE.
References Cited (Backward Citations)
US3040178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |