Attendance recording system
CA 1072681 A · Owner: Automatic Revenue Controls (Europa) Ltd. · Inventors: Russell, Peter; Webb, Graham
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Attendence recording equipment comprising a master unit including a clock and a memory, at least one terminal unit having time displaying means and personnel indentification means such as a key or card reader, the equipment being so arranged that upon presentation of the identification means of a particular employee at the terminal unit a record is made in the memory that the employee is present or absent, ant so that whilst the record shown that the employee is present a time-worked total for that employee is regularly incremented.
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
- Granted February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
- 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.