Granted Patent
Utility
US 4,815,030 · App. 06/903,495
Multitask subscription data retrieval system
Inventors:
Charley Cross, Diana Y. Moy
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Sep 3, 1986
Inventors
Charley Cross
Diana Y. Moy
Assignee (at issue)
Wang Laboratories, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.