Granted Patent
Utility
US 6,640,836 · App. 09/723,668
Coil and coil head formation dies for coils with non-conventional terminal convolutions
Inventors:
Thomas D. Haubert, Jan B. Yates
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Nov 28, 2000
Inventors
Thomas D. Haubert
Jan B. Yates
Assignee (at issue)
SEALY TECHNOLOGY LLC
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.