Stry-Lenkoff Co.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A63H TOYS, e.g. TOPS, DOLLS, HOOPS, BUILDING BLOCKS131
 
  
 
G09B EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS 142

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6604976 Segmental toy gameDec 14, 00Aug 12, 03[A63H]
5160266 Mix and match invisible ink gameFeb 11, 91Nov 03, 92[G09B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6152449 Combined sticker and invisible ink gameExpiredNov 26, 96Nov 28, 00[A63F]
5261703 Greeting card with compatible puzzle messageExpiredDec 28, 92Nov 16, 93[B42D]
D340069 Pen capExpiredJun 10, 91Oct 05, 93[]
5234344 Book packageExpiredDec 28, 87Aug 10, 93[G09B]
5217231 Power of observation invisible ink gameExpiredJun 01, 92Jun 08, 93[A63F]
5176460 Pen cap for a writing instrument barrelExpiredJun 10, 91Jan 05, 93[B43K]
4586714 Puzzle gameExpiredDec 13, 84May 06, 86[A63F, B32B]
4514177 Invisible ink quiz gameExpiredJan 23, 84Apr 30, 85[G09B, A63F]

Top Inventors for This Owner

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