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Convex-concave roller

81
Assignee: BICKFORD WILLIAM RPriority: Aug 24, 2011Filed: Aug 24, 2011Granted: Mar 19, 2013
Est. expiryAug 24, 2031(~5.1 yrs left)· nominal 20-yr term from priority
Inventors:William Bickford
81
PatentIndex Score
26
Cited by
27
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a convex-concave roller, substantially as shown and described.

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