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
CA832954A
Inventor
M. Silverstein Ronald
A. Bishof Chester
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.)
Suez WTS USA Inc
Original Assignee
Betz Laboratories Inc
Publication date
Application grantedgrantedCritical
Publication of CA832954ApublicationCriticalpatent/CA832954A/en