Method and apparatus for ground-based surveying in sites having one or more unstable zone(s)
CA 2482871 C · Owner: Van Cranenbroeck, Joel · Inventors: Van Cranenbroeck, Joel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to ground-based surveying on a site (2) which comprises an unstable zone (60) and at least one control point (FCP1 FCP2, FCP6, FCP7; CP1-CP3) placed outside the unstable zone in which method at least one surveying device (TS8 TS9; ST1-ST3) is used to acquire positional data by sighting least one control point (FCP1 FCP2, FCP6, FCP7; CP1-CP3). The approach comprises: - providing at least one sighting point (UP3-UP5; A-C) within the unstable zone (60 ; 20) - using the surveying device(s) (TS8, TS9; ST1-ST3) to acquire positional data by sighting the at least one sighting point (UP3-UP5; A-C) that is located within the unstable zone (60 ; 20) and - combining the …
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 September 29, 2004 and granted August 26, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2026.
- 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.