Granted Patent
Utility
US 4,612,018 · App. 06/583,348
Ultrasonic debubbling method and apparatus
Inventors:
Norio Tsuboi, Noboru Furukawa, Sadayuki Miyazawa
Patented Case
View Patent ↗
Granted: Sep 16, 1986
Filed: Feb 24, 1984
Inventors
Norio Tsuboi
Noboru Furukawa
Sadayuki Miyazawa
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
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.