Radial tyre bead without bead core
CA 2338175 A1 · Owner: Societe De Technologie Michelin · Inventors: Patterson, Forrest; Bestgen, Luc; Ahouanto, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a radial body armour (1) with two beads B said body armour (1) extending from one bead B to the next each bead being devoid of anchoring bead core and reinforced by an armour R comprising at least two plies (2 and 3) folded back on themselves to form four reinforcing layers (21 31, 32, 22) axially close to one another the two axially innermost layers (21, 31) consisting of mutually parallel elements from one layer (21) to the next (31) and the two layers axially at the armour centre consist of elements crossed from one layer (31) to the next (32) said elements forming with the circumferential direction an angle .alpha. such that 0· < .alpha. ? 10· and the reinforcing …
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, and the Claude kit works from them.
Why it's free to use
- Filed June 28, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2021.
- 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.