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 LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'AMBRUSTER') AND (first_name = 'Cornelius') ORDER BY date ASC, patent, type

Total of 2 patents found where: Last Name is 'AMBRUSTER'; First Name is 'Cornelius';

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 1,146,298 July 13, 1915 Insulating Support for Storage Batteries
CD 35, CD 36; Battery insulator with a lead cup sitting on an earthenware pedestal cup (see 1,181,362)
AMBRUSTER, Cornelius
U 1,181,362 May 2, 1916 Insulating Support for Storage Batteries
Battery insulator support cup made of earthenware (see 1,146,298)
AMBRUSTER, Cornelius

Total of 0.01 seconds