Granted Patent
Utility
US 4,259,198 · App. 05/965,621
Use of crystalline, crosslinked synthetic resins as a storage material in latent heat stores
Inventors:
Ursula Kreibich, Rolf Schmid
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Nov 28, 1978
Inventors
Ursula Kreibich
Rolf Schmid
Assignee (at issue)
Ciba-Geigy
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.