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 LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (residence = 'Springfield, MA') ORDER BY specimen DESC, date, patent, type

Total of 6 patents found where: Residence is 'Springfield, MA';

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
 1883
U 271,825 February 6, 1883 Fastening for Electric Circuit Wires
Miscellaneous grooved round insulator to hold wire & secured with a staple
FISKE, Henry G.
Miscellaneous  
 1904
U 751,831 February 9, 1904 Insulator Pin
Pin (metal) with webs and circular member to support inside surface of skirt
BULLARD, James H.
Pin  
U 754,123 March 8, 1904 Insulator Pin
Pin (metal) with webs made to reduce weight
BULLARD, James H.
Pin  
U 772,553 October 18, 1904 Insulator Pin
Pin (metal) composed of bars or rods attached to a metal plate
BULLARD, James H.
Pin  
 1906
U 823,461 June 12, 1906 Insulator Pin
Pin (metal) made of wire loops and sliding grooved, ribbed bar for threads
BULLARD, James H.
Pin  
 1911
U 986,213 March 7, 1911 Insulating Cap
miscellaneous
PHELPS, James C.
Miscellaneous  

Total of 0.01 seconds