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 = '248') AND (category.subclass = '67.5') ORDER BY date ASC, patent, type

Total of 22 patents found where: Class is '248'; Subclass is '67.5';

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
 1890
U 422,651 March 4, 1890 Insulator
Cleat with split ends
STANLEY, George E.
Cleat  
 1891
U Specimen known 458,964 September 1, 1891 Cleat for Electric Wires
Cleat (apparently licensed to General Electric)
BALL, Henry Price
Cleat  
U Specimen known 464,770 December 8, 1891 Clamp for Electric Wires
Nail-knob with matching caming grooves. Rotating cap tightens it against the insulated covered wire and the screw or nail secures the cap in that position.
GREEN, John Jay
BROWN, George C.
Knob  
 1893
U Specimen known 505,215 September 19, 1893 Cleat for Holding a Plurality of Insulated Electric Wires
Cleat (3-wire) - 2 piece known as the B & D cleat for Buffinton and Dow
BUFFINTON, Elisha W.
Cleat 1/2 to Albert F. Dow
 1894
U 513,564 January 30, 1894 Electric Wire Cleat or Holder
Cleat to hold two wires that may be stacked on each other to hold additional pairs of wires
FULLER, Albert W.
Cleat  
U Specimen known 518,301 April 17, 1894 Ceiling Cleat
Cleat - 2 piece
WIRT, Herbert C.
Cleat General Electric Co.
U 525,708 September 11, 1894 Bus-Bar Insulating Support
Bracket support for one-wire cleats
HERRICK, Albert B.
Bracket General Electric Co.
 1895
U 531,702 January 1, 1895 Cleat for Electric Wiring
Cleat - 2 piece
SWIFT, Joseph H.
MAINTIEN, William F.
Cleat  
U Specimen known 544,501 August 13, 1895 Cleat for Holding Electric Wires
Cleat - 2 piece
BUFFINTON, Elisha W.
Cleat 1/2 to Albert F. Dow
 1899
U 631,234 August 15, 1899 Cleat for Electric Wiring
Cleat
STEVENS, Henry M.
Cleat 1/2 to The Pettingill Andrews Co.
 1904
U 753,398 March 1, 1904 Cleat for Electric Wiring
Knob - 2-piece with base cut at an angle
HUNT, Emory C.
Knob 1/2 to Charles Snyder
U 776,514 December 6, 1904 Cleat for Electric Wiring
Knob - split
HUNT, Emory C.
Knob 1/2 to C. W. E. Snyder
 1907
U Specimen known 864,947 September 3, 1907 Clamp for Electric Wires
Knob
BUFFINTON, Elisha W.
Knob 1/2 to Marietta Huggett
 1908
U 876,059 January 7, 1908 Split Knob
Knob
IRONS, William H.
Knob  
 1909
U 910,975 January 26, 1909 Cleat for Electric Wires
Cleat
VICKERS, Antrim L.
Cleat  
U 911,864 February 9, 1909 Porcelain Cleat
Cleat
BALL, Esar-Haddon
Cleat  
 1910
U 978,941 December 20, 1910 Combined Cleat and Rosette
Cleat for ceiling fixture
SCHIMPF, Frank
Cleat  
 1911
U 995,838 June 20, 1911 Knob for Electric Wiring
Crossover knob
BOWER, Fred B.
Crossover 1/2 to Edia Ramsey
 1912
U 1,048,736 December 31, 1912 Insulating Cleat
Cleat for corners
RICHARDS, Benjamin
Cleat  
 1920
U 1,326,962 January 6, 1920 Sectional Non-Rotative Insulating Knob for Supporting Electric Wires
nail-knob with nail split in the center
POINDEXTER, Alfred M.
Knob  
 1924
U 1,510,789 October 7, 1924 Electric Wire Cleat
Cleat with separate top part so one wire can be removed without disturbing the other
LEVANDOFSKY, John
Cleat  
 1960
U 2,935,553 May 3, 1960 Electrical Knob Insulator
Nail-knob with center bushing to secure nail
SHOWMAN, Robert L.
Knob A. B. Chance Co.

Total of 0.03 seconds