Granted Patent
Utility
US 6,201,038 · App. 09/250,927
Hydrophilically modified curable silicone impression material
Inventors:
Duncan E. Waller, Xiaoyi Xie
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Feb 18, 1999
Inventors
Duncan E. Waller
Xiaoyi Xie
Assignee (at issue)
Kerr Corporation
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.