Apparatus for recording information in a magnetic record carrier
CA 1319978 C · Owner: Van Der Meer, Jan · Inventors: Van Der Meer, Jan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for recording information in a magnetic record carrier. When a record carrier (14) is inscribed for an nth time (n> 1), in which record carrier the information is recorded in first blocks (FB) in tracks (T1 T2, .), which adjoin each other and which are inclined relative to the longitudinal direction of the record carrier each, track containing at least one first block (FB1) of information and at least one second block (SB1) of tracking signals (f), only the first blocks of new information are written over the first blocks recorded previously in the tracks and the second blocks of tracking signals are not erased from the record carrier. These second blocks are employed for the …
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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 July 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 2010.
- 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.