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.)
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.)
Calmark Corp
Original Assignee
Calmark Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/042,461external-prioritypatent/US4819713A/en
Application filed by Calmark CorpfiledCriticalCalmark Corp
Publication of DE3890343T1publicationCriticalpatent/DE3890343T1/de