Membership
Tour
Register
Log in
John O. Schaefer
Follow
Person
Lexington, KY, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Electrophotographic reproduction apparatus having improved fuser to...
Patent number
5,268,726
Issue date
Dec 7, 1993
Lexmark International, Inc.
Stephen A. Oleksa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Spliceless ribbon structure having leader and trailer and method of...
Patent number
4,475,830
Issue date
Oct 9, 1984
International Business Machines Corporation
John O'N. Schaefer
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ribbon feed mechanism and correction tape feed mechanism for a type...
Patent number
4,353,657
Issue date
Oct 12, 1982
International Business Machines Corporation
John O. Schaefer
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Cartridge for correction media or tacky tape with a wrap spring
Patent number
4,350,453
Issue date
Sep 21, 1982
International Business Machines Corporation
Thomas R. Field
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Typewriter cartridge and feed mechanism therefor
Patent number
4,347,007
Issue date
Aug 31, 1982
International Business Machines Corporation
John O. Schaefer
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Typewriter cartridge and feed mechanism therefor
Patent number
4,302,118
Issue date
Nov 24, 1981
International Business Machines Corporation
John O. Schaefer
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Variable cam profile selection system for single element typewriter
Patent number
4,297,041
Issue date
Oct 27, 1981
International Business Machines Corporation
John O. Schaefer
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Random stuffer ribbon cartridge with improved ribbon exit control
Patent number
4,229,112
Issue date
Oct 21, 1980
International Business Machines Corporation
John O. Schaefer
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Double tab rack for a typewriter
Patent number
4,031,994
Issue date
Jun 28, 1977
International Business Machines Corporation
John O'Neil Schaefer
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Printer with non return to home rack shift selection mechanism
Patent number
3,948,381
Issue date
Apr 6, 1976
International Business Machines Corporation
Robert F. McDaniel
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS