Improved sonde housing structure
CA 2343382 A1 · Owner: Crane, Robert F. · Inventors: Wentworth, Steven W.; Crane, Robert F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (10) for mounting an electronic device therein for use in an underground boring machine includes an elongated housing (12) having an elongated, lengthwise central cavity opening (22) at one end thereof a , cartridge containing a sonde therein which cartridge fits in the cavity; and a keying mechanism (15) for securing the cartridge and sonde in a predetermined orientation relative to the housing (12) when the cartridge is inserted into the cavity through the opening (22).
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 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2022.
- 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.