US5675686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buffer material for optical signal transmission media
Assignee: W.L. Gore and Associates Inc
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Filing: 1995-07-05
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Granted: 1997-10-07
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Expires: 2015-07-05
Abstract
Abstract An improved optical signal transmission media comprises at least one light-transmitting fiber core defined by a cladded optical fiber, and a buffering surrounding the light transmitting fiber core. The buffering is defined by a closed-cell porous polymer material.
Inventors
- 👤 Charles T. Rosenmayer
- 👤 James Eachus
- 👤 Anand Laxminarayan
- 👤 William E. Delaney
- 👤 Dick Holcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:08
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4429; G02B6/443; B; B29; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
An improved optical signal transmission media comprising: at least one light-transmitting fiber core including a cladded optical fiber; a buffering surrounding the light transmitting fiber core, the buffering defined by a closed-cell porous polymer material; and wherein said buffering is comprised at least in part from a group consisting of foamed polyethylene, porous polypropylene, foamed polyurethane, foamed polytetrafluoroethylene, foamed flourinated ethylenepropylene (FEP), foamed rubber, and biaxially oriented, closed cell, 50% porous co-extruded polypropylene film.
Claim 2
Dependent Claim
74 words
An improved optical signal transmission media comprising: at least one light-transmitting fiber core including a cladded optical fiber; a buffering surrounding the light transmitting fiber core, the buffering defined by a closed-cell porous polymer material; and wherein said buffering is comprised at least in part from a group consisting of foamed polyethylene, porous polypropylene, foamed polyurethane, foamed polytetrafluoroethylene, foamed flourinated ethylenepropylene (FEP), foamed rubber, and biaxially oriented, closed cell, 50% porous co-extruded polypropylene film.
Claim 3
Dependent Claim
80 words
An optical fiber ribbon cable comprising: a plurality of polymer coated optical fibers disposed in parallel arrangement, one to each other; a buffering at least partially surrounding said plurality of optical fibers, the buffering defined by a closed-cell porous polymer material; and wherein said buffering is comprised at least in part from a group consisting of foamed polyethylene, porous polypropylene, foamed polyurethane, foamed polytetrafluoroethylene, foamed fluorinated ethylenepropylene (FEP), foamed rubber, and biaxially oriented, closed cell, 50% porous co-extruded polypropylene film.
Claim 4
Dependent Claim
80 words
An optical fiber ribbon cable comprising: a plurality of polymer coated optical fibers disposed in parallel arrangement, one to each other; a buffering at least partially surrounding said plurality of optical fibers, the buffering defined by a closed-cell porous polymer material; and wherein said buffering is comprised at least in part from a group consisting of foamed polyethylene, porous polypropylene, foamed polyurethane, foamed polytetrafluoroethylene, foamed fluorinated ethylenepropylene (FEP), foamed rubber, and biaxially oriented, closed cell, 50% porous co-extruded polypropylene film.
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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) | 2000-10-06 | 2001-04-07 | 2001-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-06 | 2005-04-07 | 2005-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-06 | 2009-04-07 | 2009-10-07 | $7700.00 | Window Closed / Lapsed |