Patent US3387959A successfully refreshed from Google Patents.
US3387959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming image-transfer devices embodying light-conducting fibers and light-absorbing filaments
Assignee: American Optical Corp
•
Filing: 1962-11-19
•
Granted: 1968-06-11
•
Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Henry B Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:46
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/025; C03B37/028; C03B37/027; C03B37/10; C03B37/14; C03B37/15; G; G02; G02B; G02B6/00; G02B6/04; G02B6/06; G02B6/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD FOR FORMING A FIBER OPTICAL IMAGE-TRANSFER DEVICE COMPRISING THE STEPS OF PLACING A PLURALITY OF FILAMENTS OF LIGHT-ABSORBING MATERIAL WITHIN A BUNDLE OF LIGHT-CONDUCTING OPTICAL FIBERS IN SPACED RELATIONS TO EACH OTHER BETWEEN PORTIONS OF SAID FIBERS AND ARRANGING SAID FIBERS, EACH EMBODYING A LIGHT-TRANSMITTING CORE OF SELECTED REFRACTIVE INDEX HAVING A FUSIBLE LIGHT-TRANSMITTING CLADDING OF RELATIVELY LOWER REFRACTIVE INDEX WHICH IS OF SELECTED THICKNESS AT ONE PORTION EXTENDING ALONG THE LENGTH OF SAID CORE AND OF APPROXIMATELY ONE-HALF SAID SELECTED THICKNESS AROUND THE REMAINDER OF SAID CORE, WITH THE FIBER CLADDING PORTIONS OF SAID SELECTED THICKNESS CONTACTING SAID FILAMENTS AND WITH OTHER PORTIONS OF SAID FIBER CLADDINGS CONTACTING ADJACENT FIBER CLADDINGS IN SAID BUNDLE,
Claim 2
Independent Claim
117 words
A METHOD FOR FORMING A FIBER OPTICAL IMAGE-TRANSFER DEVICE COMPRISING THE STEPS OF PLACING A PLURALITY OF FILAMENTS OF LIGHT-ABSORBING MATERIAL WITHIN A BUNDLE OF LIGHT-CONDUCTING OPTICAL FIBERS IN SPACED RELATIONS TO EACH OTHER BETWEEN PORTIONS OF SAID FIBERS AND ARRANGING SAID FIBERS, EACH EMBODYING A LIGHT-TRANSMITTING CORE OF SELECTED REFRACTIVE INDEX HAVING A FUSIBLE LIGHT-TRANSMITTING CLADDING OF RELATIVELY LOWER REFRACTIVE INDEX WHICH IS OF SELECTED THICKNESS AT ONE PORTION EXTENDING ALONG THE LENGTH OF SAID CORE AND OF APPROXIMATELY ONE-HALF SAID SELECTED THICKNESS AROUND THE REMAINDER OF SAID CORE, WITH THE FIBER CLADDING PORTIONS OF SAID SELECTED THICKNESS CONTACTING SAID FILAMENTS AND WITH OTHER PORTIONS OF SAID FIBER CLADDINGS CONTACTING ADJACENT FIBER CLADDINGS IN SAID BUNDLE,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |