CALCOMP INC.
Patent Owner
Stats
- 3 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 29, 1998 most recent publication
Details
- 3 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,894 Total Citation Count
- Jul 03, 1978 Earliest Filing
- 128 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5745138 Ink chamber with pressure relief chamber having pressure relief aperture and microparticles to exert capilliary action on inkExpiredMay 16, 96Apr 28, 98[B41J]
5687298 Chordal tolerance control in circles on pen plotters for increased throughputExpiredApr 28, 93Nov 11, 97[G06K]
5682039 Media position sensing system having a plurality of apertures in the media edge marginExpiredMay 15, 95Oct 28, 97[G01N, G01D, G06K]
5596351 Ink level sensing on a pen carriage in a pen plotterExpiredDec 08, 93Jan 21, 97[B41J, G01D, G01F]
5489934 Printed wire recording transducer for electrostatic printing/plotting applicationsExpiredMay 03, 93Feb 06, 96[G01D]
5461402 Pinch roller for pen plotters including platen bridge to prevent media snagExpiredSep 15, 94Oct 24, 95[B41J]
5458310 Adjustable and self-holding supply roll system for plotting devicesExpiredDec 08, 93Oct 17, 95[B65H]
5440327 Polychromatic pen for pen plotters with color mixing at media surfaceExpiredJul 28, 92Aug 08, 95[C23C, G01D]
5436598 Phase lock loop circuit for signals periodically inverting in phaseExpiredJan 21, 94Jul 25, 95[H03L]
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