Floor maintenance machine
First Claim
Patent Images
1. The ornamental design for a floor maintenance machine, substantially as shown.
1 Assignment
0 Petitions
Accused Products
30 Citations
1 Claim
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1. The ornamental design for a floor maintenance machine, substantially as shown.
Specification
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Current AssigneeTennant Company
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Original AssigneeTennant Company
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InventorsJohnson, Logan W., Star, Roger D., Brown, Neil F.
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Primary Examiner(s)Kemper, Catherine E.
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Assistant Examiner(s)Wilder, Lynn
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Application NumberUS06/416,656Time in Patent Office592 DaysField of SearchD32/15, D32/16, 15/48, 15/49 R, 15/50 R, 15/300, 15/320-327, 15/340, 15/353US Class CurrentD32/16CPC Class CodesN/A
