Protol A.G.

Also on record

Records under this name other than patents Protol A.G. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Showing 1 to 8 of 8 · Back to Protol A.G.

Patent	Title	Status	Expires	Confidence
US 6,085,801	Helically wound lock-seam tube Formerly held Term ended Term ended Dec 22, 2018 · From the USPTO record	Term ended	Term ended Dec 22, 2018	From the USPTO record
US 6,561,228	Helically wound lock seam tube Formerly held Term ended Term ended Mar 8, 2015 · From the USPTO record	Term ended	Term ended Mar 8, 2015	From the USPTO record
US 6,513,553	Helically wound lock-seam tube Formerly held Lapsed on the fee record Ended Feb 4, 2015 · From the USPTO record	Lapsed on the fee record	Ended Feb 4, 2015	From the USPTO record
US 5,720,095	Method and apparatus for producing helically wound lock-seam tubing Formerly held Term ended Term ended no later than Feb 24, 2018 · Low confidence	Term ended	Term ended no later than Feb 24, 2018	Low confidence
US 5,737,832	In and relating to machines for forming helically wound lock-seam tubing having multiple wall thickness Formerly held Term ended Term ended no later than Apr 14, 2018 · Low confidence	Term ended	Term ended no later than Apr 14, 2018	Low confidence
US 6,003,220	Method and apparatus for producing helically wound lock-seam tubing Formerly held Term ended Term ended no later than Dec 21, 2019 · Low confidence	Term ended	Term ended no later than Dec 21, 2019	Low confidence
US D376,193	Helically wound lock-seam tube Formerly held Term ended	Term ended
US D379,358	Clinching roller Formerly held Term ended	Term ended