AP/M Permaform announced that a settlement has been reached on a suit filed in Federal District Court in Des Moines, Iowa against C-Mar Enterprises, Inc. for infringement
What sets the Permaform system apart from other manhole rehab systems is that it is a fully structural repair that can be done completely without any excavation whatsoever, claims Shook. Other no-excavation repair systems are not fully structural, according to Shook, and other structural repairs frequently require some kind of external, digging.