Search the Insulator Patent Reference Library

SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Gutta') ORDER BY date ASC, patent, type

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

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
		1867
U	64,315	April 30, 1867	Improvement in Telegraph Insulator Gutta-percha and bell covering to keep section of wire dry	HENDRICKSON, Stephen C.	Gutta
		1870
U	105,625	July 26, 1870	Improvement in Telegraph Insulators Gutta-percha, paraffin or other insulation separating two metal shells	BALDWIN, William W.	Gutta

Total of 0.01 seconds

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: