US Patent 9840813 Paving stones
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Patent abstract
Generally L-shaped, square, rectangular, triangular, hexagonal, parallelogram and other-shaped paving stones with inter-fitting vertical spacers forming serpentine side contact surfaces that provide enhanced stone-to-stone interlocking in both water-permeable and water-impermeable paving installations.
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Patent Inventor Names
Leonard Browning0
Robert J. Lundell0
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US Patent 09840813 Paving stones US Patent 9840813 Paving stones
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Patent Number
098408130
Patent Number
98408130
Edits on 25 Apr, 2023
Golden AI
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Patent Jurisdiction
Patent Number
098408130
Date of Patent
December 12, 2017
0Patent Application Number
150934740
Date Filed
April 7, 2016
0Patent Primary Examiner
Edits on 16 Jan, 2022
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US Patent 09840813 Paving stones
Infobox
Is a
Patent jurisdiction
Patent number
09840813
Date of patent
December 12, 2017
Patent application number
15093474
Date Filed
April 7, 2016
Patent primary examiner
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