Patent US3244776A successfully refreshed from Google Patents.
US3244776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming apertured optical discs
Assignee: Bausch and Lomb Inc
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Filing: 1961-09-21
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Granted: 1966-04-05
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Expires: 1981-09-21
Abstract
No abstract record available.
Inventors
- 👤 Gilbert J Sheldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:49
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/10; C03B37/14; C03B37/01; C03B37/02; C03B37/025; C03B37/027; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF MAKING THICK WALLED APERTURE DISCS FOR USE IN AN OPTICAL SYSTEM COMPRISING PLACING AN OPTICALLY INSULATED TRANSPARENT FIBER IN A THICK WALLED OPAQUE HOLLOW MEMBER, CONTINUOUSLY FUSING AND ELONGATING SAID FIBER WITH SAID MEMBER FROM ONE END TO THE OTHER AND REMOVING THE GAS FROM THE HOLE IN SAID MEMBER WHILE FORMING A COMPOSITE STRUCTURE, SEVERING APERTURE DISCS HAVING THE DESIRED OPTICAL LENGTH FROM SAID COMPOSITE STRUCTURE ACROSS THE AXIS OF THE STRUCTURE, POLISHING THE END SURFACES ON SAID APERETURE DISCS TO THEREBY PROVIDE A PLURALITY OF APERTURE DISCS.
Claim 2
Independent Claim
92 words
A METHOD OF MAKING THICK WALLED APERTURE DISCS FOR USE IN AN OPTICAL SYSTEM COMPRISING PLACING AN OPTICALLY INSULATED TRANSPARENT FIBER IN A THICK WALLED OPAQUE HOLLOW MEMBER, CONTINUOUSLY FUSING AND ELONGATING SAID FIBER WITH SAID MEMBER FROM ONE END TO THE OTHER AND REMOVING THE GAS FROM THE HOLE IN SAID MEMBER WHILE FORMING A COMPOSITE STRUCTURE, SEVERING APERTURE DISCS HAVING THE DESIRED OPTICAL LENGTH FROM SAID COMPOSITE STRUCTURE ACROSS THE AXIS OF THE STRUCTURE, POLISHING THE END SURFACES ON SAID APERETURE DISCS TO THEREBY PROVIDE A PLURALITY OF APERTURE DISCS.
References Cited (Backward Citations)
US1994164A
Cited
US3038236A
Cited
US2825260A
Cited
US2992561A
Cited
US2992956A
Cited
US3037241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |