Patent US5349280A successfully refreshed from Google Patents.
Patent US4053381A successfully refreshed from Google Patents.
Patent US4550974A successfully refreshed from Google Patents.
US4550974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low loss fused biconical taper optic coupler
Assignee: FCI Canada Inc
•
Filing: 1985-04-04
•
Granted: 1985-11-05
•
Expires: 2005-04-04
Abstract
Abstract An improved low loss fused biconical taper fiber optic coupler has a biconical taper region where the fibers are fused together and have a deformed zone at their minimum taper region. The deformation of the fibers is in the shape of a ball.
Inventors
- 👤 Kent A. Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:32
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/28; G02B6/2804; G02B6/2856
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
58 words
A low loss fused biconical taper fiber optic coupler comprising: a plurality of optical fibers each having a core and a cladding surrounding the core, said fibers being fused together in a unitary biconical tapered region including a first tapered region, a second tapered region and a deformed region therebetween, the cores in said deformed region being scrambled.
Claim 2
Dependent Claim
58 words
A low loss fused biconical taper fiber optic coupler comprising: a plurality of optical fibers each having a core and a cladding surrounding the core, said fibers being fused together in a unitary biconical tapered region including a first tapered region, a second tapered region and a deformed region therebetween, the cores in said deformed region being scrambled.
Claim 3
Dependent Claim
15 words
The coupler as claimed in claim 1 wherein said deformed region includes a ball-shaped configuration.
Claim 4
Dependent Claim
15 words
The coupler as claimed in claim 1 wherein the deformed region includes a scored region.
Claim 5
Dependent Claim
16 words
The coupler as claimed in claim 1 wherein the deformed region includes a rejoined separated region.
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) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |