Granted Patent
Utility
US 4,895,548 · App. 07/280,233
Collapsible construction set
Inventors:
Andrew M. Holland, Dan B. Young, James J. Wright, Timothy M. Sullivan, Hampton Woodhouse, John F. Mayer, Michael A. Katauskas
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Dec 5, 1988
Inventors
Andrew M. Holland
Dan B. Young
James J. Wright
Timothy M. Sullivan
Hampton Woodhouse
John F. Mayer
Michael A. Katauskas
Assignee (at issue)
Tonka Corporation, Kenner Division
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.