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 (category = 'Cap') ORDER BY assigned_to DESC, date, patent, type

Total of 4 patents found where: Category is 'Cap';

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
 Westinghouse Electric & Mfg. Co.
U 946,623 January 18, 1910 Insulator for Electric lines
Metal cap cemented on crown to hold wire in crown or side groove
VARNEY, Theodore
Cap Westinghouse Electric & Mfg. Co.
 The Ohio Brass Co.
U 1,876,579 September 13, 1932 Insulator
Iron bus bar support cap cemented to top of an insulator
AUSTIN, Arthur O.
Cap The Ohio Brass Co.
U 1,950,646 March 13, 1934 Insulator
Iron cap cemented on the top of an insulator for switch connection
AUSTIN, Arthur O.
Cap The Ohio Brass Co.
 Railway and Industrial Engineering Co.
U 1,590,381 June 29, 1926 Insulator Cap
Iron insulator cap cemented to top of insulator to support electrical equipment
KERR, Benjamin W.
Cap Railway and Industrial Engineering Co.

Total of 0.01 seconds