Segmented band joist batts and method of manufacture
CA 2493516 C · Owner: Certainteed Corporation · Inventors: Lembo, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Insulation is partially divided into segments (200a) wherein each of the segments (200a) has an R-value and thickness and has length and width dimensions of at least somewhat greater than 9.5 inches by at least somewhat greater than 14.5 inches to fill band joist cavities between spaced apart joists (106); and the batt (200) is either three segments (200a) in length or four segments (200a) in length or is folded at intervals of the three segments (200a) in length or four segments in length (200a) and the batt (200) has a width of either one segment (200a) or two segments (200a) and the segments (200a) of the same batt (200) are partially divided from one another and remain in the batt (200) …
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 January 20, 2005 and granted April 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.