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
CA909609A
Inventor
E. Jackson Albert
H. Hughes Phillip
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.)
Saint Gobain PAM UK Ltd
Original Assignee
John Summers and Sons Ltd
Publication date
Application grantedgrantedCritical
Publication of CA909609ApublicationCriticalpatent/CA909609A/en