Granted Patent
Utility
US 6,547,209 · App. 09/633,097
Removable side system for a concrete mould
Inventor:
Kari Vappula
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Aug 4, 2000
Inventor
Kari Vappula
Assignee (at issue)
Addtek Research & Development Oy AB
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.