SIFA SITZFABRIK GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A47C CHAIRS 251

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5551754 Height adjustment for the backs of chairsOct 17, 94Sep 03, 96[A47C]
5328240 Support for a seat including a pedestal adapted to receive a vertically inclined columnJun 02, 92Jul 12, 94[A47C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6467844 System tightening the seat supports of chairsExpiredMar 14, 01Oct 22, 02[A47C]
6322144 Seat support for revolving chairsExpiredMar 24, 99Nov 27, 01[A47C]
6131996 Seat carrier for chairsExpiredJun 02, 99Oct 17, 00[A47C]
5884969 Release for a height adjustment of back restsExpiredDec 19, 97Mar 23, 99[A47C]
5882077 Height adjustment of back restsExpiredNov 25, 97Mar 16, 99[A47C]
5882078 Clamp adjustable-height seat-backsExpiredNov 10, 97Mar 16, 99[A47C]
5685607 Office chair seat carrierExpiredOct 17, 95Nov 11, 97[A47C]
5638925 Jerk arresting mechanismExpiredFeb 24, 95Jun 17, 97[A47C, E05D, E05F]
5588706 Control mechanism for the seat carriers of chairs, especially swivel chairsExpiredOct 14, 94Dec 31, 96[A47C]
5340194 Device for adjusting seat frame and back rest of chair of swivel type chairExpiredOct 15, 92Aug 23, 94[B60N]
5228748 Seat carrier for chairsExpiredSep 17, 91Jul 20, 93[A47C]
4636004 Seat mounting for chairs, in particular swivel-type desk chairsExpiredAug 13, 84Jan 13, 87[A47C]

Top Inventors for This Owner

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