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
CA42990F
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.)
Dobson Dark Ind Products Ltd
Original Assignee
Dobson Dark Ind Products Ltd
Publication date
Priority to CA42990FpriorityCriticalpatent/CA42990S/en
Application grantedgrantedCritical
Publication of CA42990SpublicationCriticalpatent/CA42990S/en