Granted Patent
Utility
US 5,457,032 · App. 07/731,157
Mutated .beta.-lactam acylase genes
Inventors:
Wilhelmus J. Quax, Onno Misset, Jan Metske Van Der Laan, Herman B. M. Lenting
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: May 9, 1991
Inventors
Wilhelmus J. Quax
Onno Misset
Jan Metske Van Der Laan
Herman B. M. Lenting
Assignee (at issue)
Gist-Brocades
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.