Patent US5675686A successfully refreshed from Google Patents.
US5675686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buffer material for optical signal transmission media
Assignee: W.L. Gore and Associates Inc
•
Filing: 1995-07-05
•
Granted: 1997-10-07
•
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 06:56
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.
References Cited (Backward Citations)
JPS53123152A
Cited
US4710353A
Cited
US4812014A
Cited
US4770489A
Cited
US4810836A
Cited
EP0422764A2
Cited
US5062685A
Cited
JPH05504224A
Cited
US5002359A
Cited
US5210377A
Cited
US5189721A
Cited
US5253318A
Cited
US5293442A
Cited
US5333229A
Cited
US5485541A
Cited
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 |