M4 Data Limited

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for loading and unloading cartridges
- Patent number 5,652,682
- Issue date Jul 29, 1997
- M4 Data Limited
- Robert Vernon Elliott
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape drive machine for selectively reading a plurality of recording...
- Patent number 5,515,213
- Issue date May 7, 1996
- M4 Data Limited
- Robert V. Elliott
- G11 - INFORMATION STORAGE
Information Patent Grant
Auto-loading of tape cartridges
- Patent number 5,353,179
- Issue date Oct 4, 1994
- M4 Data Limited
- Robert V. Elliott
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape drive having a selectively retractable drive hub
- Patent number 5,227,935
- Issue date Jul 13, 1993
- M4 Data Limited
- Norman Gordon
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
74296385 - M4
- Serial number 74296385
- Registration number 1891984
- Filing date Jul 20, 1992
- M4 Data Limited
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments