US6056237A (Expired)
2003-11-19
MAINTENANCE FEE REMINDER MAILED
2003-11-20
MAINTENANCE FEE REMINDER MAILED
2004-05-03
FOR FAILURE TO PAY MAINTENANCE FEES
2004-06-29
-EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE
Effective DATE 20040502
2011-10-31
ASSIGNMENT
Owner Name 1281329 ALBERTA LTD., CANADA
Free Format Text ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOODLAND, RICHARD;REEL/FRAME:027147/0883
Effective DATE 20070901
2013-01-15
ASSIGNMENT
Owner Name 1281329 ALBERTA LTD., CANADA
Free Format Text ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOODLAND, RICHARD;REEL/FRAME:029627/0437
Effective DATE 20070901
2018-01-23
ON STATUS: PATENT DISCONTINUATION
Free Format Text PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
