Processes and devices for entering characters in electronic processing using a keyboard
CA 2073029 A1 · Owner: Scanculator Ag · Inventors: Hauser, Walter A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The entry of keyboard functions like addition or enter commands which have to be entered repeatedly is automated in that by the, single operation of a single key of the input keyboard alternatively in the first instance the character for this key or in the second the character of this key and then the character or function of any other key is entered in electronic processing. There are two methods of differentiating between the two instances. In the first it is established whether a pressure point and in the second whether a time interval has been exceeded or not reached. The keyboard is divided into two parts. The character (or function) of a key in part 1 can be temporarily stored -- …
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 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2013.
- 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.