Stretch wrap film having stretch identifier; wrapped products; method for manufacturing stretch wrap film having stretch identifier; and method for packaging product
CA 2288487 A1 · Owner: Bonke, Douglas D. · Inventors: Tilman, Paul A.; Bonke, Douglas D.; Tomic, Mladomir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stretch wrap film is provided. The stretch wrap film includes a stretch identifier which allows the stretch wrap operator to gauge the degree of stretch in the, film as a result of stretch wrap operations. The stretch identifier includes a repeating, pattern along the length of the stretch wrap film. The repeating pattern can take the, shape of a sine wave, a segmented sine wave a circle, a square or rectangle, arrows or, brackets. The stretch wrap film can be used for wrapping articles including , pallets, forage, rolls of paper or fiber material windows and furniture.
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 November 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 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.