Patent US6117632A successfully refreshed from Google Patents.
Patent US3355674A successfully refreshed from Google Patents.
US3355674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber laser device
Assignee: International Business Machines Corp
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Filing: 1962-06-27
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Granted: 1967-11-28
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Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Wilton A Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:34
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/025; H01S3/04; H01S3/042; H01S3/05; H01S3/06; H01S3/063; H01S3/067; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/10; H01S3/102; H01S3/1022; H01S3/13; H01S3/131
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A DEVICE FOR PRODUCING HIGHLY DIRECTIONAL, COHERENT AND MONOCHROMATIC ELECTROMAGNEITC RADIATION COMPRISING: AN ELEMENT HAVING AN ELONGATED FIBER CORE OF A MATERIAL SUSCEPTIBLE OF PRODUCING ELECTROMAGNETIC RADIATION BY STIMULATED EMISSION; A LAYER OF CLADDING MATERIAL SURROUNDING AT LEAST A PORTION OF SAID ELONGATED FIBER CORE; A SOURCE OF STIMULATING RADIATION DISPOSED IN SPACED RELATION WITH RESPECT TO SAID ELEMENT FOR STIMULATING EMISSION IN SAID FIBER CORE; MEANS FOR CONCENTRATING THE RADIATION EMANATING FROM SAID SOURCE ON SAID FIBER CORE; MEANS TO SUBJECT CORE TO AN ELECTRICAL FIELD COMPRISING A PAIR OF ELECTRODES DISPOSED ON OPPOSITE SIDES OF SAID FIBER CORE; ONE OF SAID ELECTRODES BEING FORMED BY AN ELECTROMAGNETIC RADIATION TRANSMITTING CURRENT CONDUCTIVE COATING OVERLYING AT LEAST A PORTION OF SAID CLADDING MATERIAL; AND MEANS TO APPLY AN ADJUSTABLE VOLTAGE ACROSS SAID ELECTRODES.
Claim 2
Independent Claim
133 words
A DEVICE FOR PRODUCING HIGHLY DIRECTIONAL, COHERENT AND MONOCHROMATIC ELECTROMAGNEITC RADIATION COMPRISING: AN ELEMENT HAVING AN ELONGATED FIBER CORE OF A MATERIAL SUSCEPTIBLE OF PRODUCING ELECTROMAGNETIC RADIATION BY STIMULATED EMISSION; A LAYER OF CLADDING MATERIAL SURROUNDING AT LEAST A PORTION OF SAID ELONGATED FIBER CORE; A SOURCE OF STIMULATING RADIATION DISPOSED IN SPACED RELATION WITH RESPECT TO SAID ELEMENT FOR STIMULATING EMISSION IN SAID FIBER CORE; MEANS FOR CONCENTRATING THE RADIATION EMANATING FROM SAID SOURCE ON SAID FIBER CORE; MEANS TO SUBJECT CORE TO AN ELECTRICAL FIELD COMPRISING A PAIR OF ELECTRODES DISPOSED ON OPPOSITE SIDES OF SAID FIBER CORE; ONE OF SAID ELECTRODES BEING FORMED BY AN ELECTROMAGNETIC RADIATION TRANSMITTING CURRENT CONDUCTIVE COATING OVERLYING AT LEAST A PORTION OF SAID CLADDING MATERIAL; AND MEANS TO APPLY AN ADJUSTABLE VOLTAGE ACROSS SAID ELECTRODES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |