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 category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '84') ORDER BY category ASC, date, patent, type

Total of 22 patents found where: Class is '84';

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
 Piano
U 24,294 June 7, 1859 Leg for Pianos
Glass insert in a piano leg with hole for mounting a caster wheel
GELIN, Felix
GELIN, Charles
Piano  
U 121,686 December 5, 1871 Improvement in Sounding Boards for Pianos
Support for piano comprised of three layers of wooden boards
TAYLOR, Edward L.
Piano  
U 150,112 April 21, 1874 Improvement in Piano Forte Insulators
Glass cup to insulate a piano leg from sending musical vibrations to the floor
VIGNERON, Charles
Piano  
U 153,101 July 14, 1874 Improvement in Piano Sound Insulating Attachments
Glass insert in a piano leg with hole for mounting a caster wheel
MILLER, William R.
Piano  
U 155,099 September 15, 1874 Improvement in Insulators for Musical Instruments
Insulator mounted between the top of the piano leg and the piano
MILLER, William R.
Piano  
U 159,342 February 2, 1875 Improvement in Piano Insulators
Insulator mounted between the top of the piano leg and the piano
MILLER, William R.
Piano  
U 189,441 April 10, 1877 Improvement in Hollow Supports for Pianos
Hollow block to support piano legs (see reissue 7,750)
FAIRMAN, James
Piano  
R 7,750 June 19, 1877 Improvement in Piano Attachments
Hollow block to support piano legs (see 189,441)
FAIRMAN, James
Piano  
U 228,962 June 15, 1880 Musical Instrument Insulator
Glass insulator for piano legs
WEIR, Charles S.
Piano  
U 266,552 October 24, 1882 Insulator for Musical Instruments
Hollow glass insulator for piano legs
SYNAR, Joseph
Piano 2/3 to Henry B. Synar and John T. Synar
U 632,851 September 12, 1899 Bedstead Insulator
Glass insulator for bed legs
SELLERS, William
Piano  
U 639,016 December 12, 1899 Acoustic Supporting Base for Pianos
Hollow glass insulator for piano legs
BRONSON, Frank A.
Piano  
U 641,493 January 16, 1900 Support for Musical Instruments
Hollow glass insulator for piano legs with adjustable height
BOORMAN, David
Piano  
U 700,977 May 27, 1902 Support for Pianos
Glass caster cup for pianos
OLSEN, Andreas
Piano  
U 743,672 November 10, 1903 Elastic Piano Support
Piano leg support composed of a metal spring
BAEUMLE, John
Piano  
U 1,221,225 April 3, 1917 Floor Protecting Attachment for Furniture
Cup of wood or rubber to hold caster wheel and sheet metal insert to secure caster from movement
SCHAUERMANN, Edward
Piano The Hold Fast Caster Cup Co.
U 1,345,987 July 6, 1920 Cushion Support
Square of layered rubber with depression in the center to hold caster wheel from movement
BOCKING, Frederick William
Piano  
U 1,374,029 April 5, 1921 Tone Foot for Phonographs
A rubber base with glass insert to support phonograph legs
PRICKETT, William H.
Piano  
U 1,562,817 November 24, 1925 Piano Glide
Glass shell with bottom made of polished hardwood to aid in moving piano and act as an insulator
WISMER, George C.
Piano  
U 1,670,853 May 22, 1928 Piano Insulator
Glass base with metal and rubber cup to support the piano leg
GEBHARD, Carl
Piano  
U 1,848,501 March 8, 1932 Caster Base
Wood, cork, and felt support for piano legs
STEVENS, Charles Whitney
Piano  
U 2,699,628 January 18, 1955 Caster Cup
Molded top supporting plate supported by resilent material
AUER, Betty
Piano  

Total of 0.02 seconds