For the Inventor, By the Inventor

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Chicago, IL, United States of America

The Maxant Corporation

USPTO Granted Patents = 3

Forward Citations = 11

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5 inventors (with patents filed for the assignee):

Bruce A Ferguson (2 out of 4 patents)

Leo D Ptasinski (2 out of 2 patents)

Raynor Sturgis (1 out of 2 patents)

4. Harvey E Schulz (1 out of 1 patent)

5. John Patterson (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. D387866 - Mask for supporting and displaying mammography film (1997-12-16),

2. 4198733 - Fabric covered button (1980-04-22),

3. 4167053 - Fabric-covered button and the method for fabricating same (1979-09-11),

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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#803 in Chicago, IL

#3,451 in Illinois

#73,766 in US

Chicago, IL, United States of America

The Maxant Corporation

Forward Citations = 11

5 inventors:

Bruce A Ferguson (2 out of 4 patents)

Leo D Ptasinski (2 out of 2 patents)

Raynor Sturgis (1 out of 2 patents)

4. Harvey E Schulz (1 out of 1 patent)

5. John Patterson (1 out of 1 patent)

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