Granted Patent
Utility
US 4,094,778 · App. 05/810,481
Sequestering of CA.sup.++ and MG.sup.++ in aqueous media using zeolite mixtures
Inventors:
Arthur Denny, Anthony J. Gioffre, John D. Sherman
Patented Case
View Patent ↗
Granted: Jun 13, 1978
Filed: Jun 27, 1977
Inventors
Arthur Denny
Anthony J. Gioffre
John D. Sherman
Assignee (at issue)
Union Carbide 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.