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:
Date:
Year between: and
Patentee starting with:
City:
State:
Assigned To starting with:
Description containing:
Category:
Class:    Subclass:
Click Search when complete:
SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Stack') ORDER BY date ASC, patent, type

Total of 2 patents found where: Category is 'Stack';

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
 1902
U Specimen known 701,848 June 10, 1902 Insulator
Stacking glass sections with sections fused or cemented together
CONVERSE, Vernon G.
Stack Hemingray ????
U 705,811 July 29, 1902 Insulating Support for Metallic Circuits
Stacked multiple insulators to support wire
ALLEN, John S.
Stack  

Total of 0.00 seconds