Unitary body quadrilateral header for heat exchanger
CA 2453101 A1 · Owner: Harsco Technologies Corporation · Inventors: Kelsey, Richard Dwayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A header box (10) for a heat exchanger includes a hollow unitary body having four generally flat sides forming a generally quardilater al cross/section. End plates (45) are located at, and coupled to each end of the unitary body. , One flat side has a plurality of plug openings located. The flat side opposite the one generally flat side having the plug openings includes a plurality of tube openings (46).
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 July 5, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 5, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2024.
- 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.