Search the Insulator Patent Reference Library:

Build your search criteria. The patent must match all the values specified.
Select patent types: Utility   Design   Reissue
Patent number:
Year between: and
Patentee starting with:
Assigned To starting with:
Description containing:
Class:    Subclass:
Click Search when complete:
SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'Porcelain Insulator Corp.') ORDER BY patent DESC, type

Total of 1 patents found where: Assigned To is 'Porcelain Insulator Corp.';

View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.

T / S Patent Date Description Patentee Category Assigned To
U 2,033,827 March 10, 1936 Insulator Forming Machine
Machine to form the underside and recesses between skirts and the petticoats by using a trimming device that can be adjusted to any angle and extend inward as needed
FRENCH, Lucius L.
Manufacturing Porcelain Insulator Corp.

Total of 0.01 seconds