Fiber dispenser
CA 2026144 C · Owner: Lostracco, Gregory · Inventors: Lostracco, Gregory
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A fiber dispenser 10 which provides a bobbin 12 with an expansion ring 30 mounted on an end thereof. The expansion ring 30 is coaxial with the bobbin 12 and permits the use of a nontapered bobbin for high speed dispensation applications. In a specific embodiment the, invention includes a mechanism for adjusting the diameter of the expansion ring as the fiber is dispensed. A further, more specific embodiment includes a mechanism 42, 44 for adjusting the longitudinal position of the expansion ring 30 as the fiber 21 is wound thereon.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents.
Why it's free to use
- Filed September 25, 1990 and granted November 15, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.