Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA649666A
Inventor
Beekman Hilton A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Courtaulds North America Inc
Original Assignee
Courtaulds North America Inc
Publication date
Application grantedgrantedCritical
Publication of CA649666ApublicationCriticalpatent/CA649666A/en