US4512629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber with hermetic seal and method for making same
Assignee: Avago Technologies International Sales Pte Ltd
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Filing: 1982-03-30
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Granted: 1985-04-23
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Expires: 2002-03-30
Abstract
Abstract A coating is applied to an optical fiber to form a thin hermetic seal. The coating is preferably applied on-line by a process such as chemical vapor deposition. The coating retains its integrity under extreme conditions of temperature and pressure thereby expanding the range of uses of optical fibers.
Inventors
- 👤 Eric G. Hanson
- 👤 Ronald Hiskes
- 👤 Christopher A. Schantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:21
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/22; C03C25/223; B; B29; B29D; B29D11/00; B29D11/00663; C03C25/104; C03C25/106; C03C25/1061; G; G02; G02B; G02B6/00; G02B6/02; G02B6/02395
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
An improved optical fiber having an encapsulating hermetic coating consisting essentially of silicon and carbon.
Claim 2
Dependent Claim
15 words
An improved optical fiber having an encapsulating hermetic coating consisting essentially of silicon and carbon.
Claim 3
Dependent Claim
63 words
A process for producing an optical fiber having improved resistance to static fatigue, said process comprising the steps of: supplying a source consisting essentially of carbon to a chemical vapor deposition reaction chamber; supplying a source consisting essentially of silicon to the reaction chamber; and pulling the fiber through the chamber while the silicon and carbon are present as vapor in the chamber.
Claim 4
Dependent Claim
63 words
A process for producing an optical fiber having improved resistance to static fatigue, said process comprising the steps of: supplying a source consisting essentially of carbon to a chemical vapor deposition reaction chamber; supplying a source consisting essentially of silicon to the reaction chamber; and pulling the fiber through the chamber while the silicon and carbon are present as vapor in the chamber.
References Cited (Backward Citations)
US4173393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |