U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Ground and floor covering block

Patent 5466089 Issued on November 14, 1995. Estimated Expiration Date: Icon_subject January 3, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Inventor

Application

No. 368011 filed on 01/03/1995

US Classes:

404/34, Modules or blocks (preformed)52/596, OPAQUE STONELIKE MODULE52/603, With integral spacing projections404/37, Including spacer means404/39, Bevel or incline edge404/41Interfitting

Examiners

Primary: Britts, Ramon S.
Assistant: O'Connor, Pamela A.

Attorney, Agent or Firm

Foreign Patent References

  • 2751536 DE. 05/13/1979
  • 3217737 DE. 12/13/1982
  • 3409114 DE. 09/13/1985

International Class

E01C 005/00

Abstract

A paving block for covering the ground, floor and like surfaces. The paving block is generally planar with a vertical dimension. The upper and lower planar surfaces and the vertical sides define a pentagon. the pentagon has three longer sides and two shorter sides. Two of the longer sides are equal. The third longer side is at least as long as the two equal longer sides. The two equal longer sides are joined at one end at a 90° internal angle. Each is joined at its opposite end to one of the shorter sides at a 90° internal angle and each shorter side is then joined at a 135° internal angle to the third longer side. The third longer side opposes the right angle between the two equal longer sides and is bisected by a line bisecting the 90° angle between the two equal longer sides. The pentagonal paving block may be used to create homogeneous designs or in combination with a square paving block, the exterior sides of which are equal in length to the adjoining longer sides of the pentagonal block.

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