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Class Information
Number: 52/180
Name: Static structures (e.g., buildings) > Specified wear or friction-type traffic-carrying surface > Perforate structure having twisted element or particular surface
Description: Structure having (1) spaced bars or strips which are twisted along their length or (2) a grating or perforated sheet having a feature forming a defined traffic carrying surface which is discrete with respect to the sheet or grating itself.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7341401 |
Subsurface drainage system and drain structure therefor |
Mar. 11, 2008 |
| 7331147 |
Hexagonal paving panel |
Feb. 19, 2008 |
| 7322773 |
Post mounting assembly |
Jan. 29, 2008 |
| 7299592 |
Structural support system for floor tiles |
Nov. 27, 2007 |
| 7288308 |
Floor covering of an elastomer material having a textured surface |
Oct. 30, 2007 |
| 7201538 |
Subsurface drainage system and drain structure therefor |
Apr. 10, 2007 |
| 7162839 |
Non-slip material |
Jan. 16, 2007 |
| 7108454 |
Subsurface drainage system and drain structure therefor |
Sep. 19, 2006 |
| 6968665 |
Pool grating and a method of installation |
Nov. 29, 2005 |
| 6878430 |
Floor covering of an elastically deformable material |
Apr. 12, 2005 |
| 6810834 |
Agricultural floor panel |
Nov. 2, 2004 |
| 6634145 |
Modular stone stair system |
Oct. 21, 2003 |
| 6622440 |
Modular flooring |
Sep. 23, 2003 |
| 6539681 |
Spacer plate for a hollow floor and a hollow floor made therewith |
Apr. 1, 2003 |
| 6537642 |
Perforated floor mat holder |
Mar. 25, 2003 |
| 6428870 |
Subsurface fluid drainage and storage system and mat especially utilized for such system |
Aug. 6, 2002 |
| 6296912 |
Roofing material with fibrous mat |
Oct. 2, 2001 |
| 6199335 |
Floor structure for use on ice and the method of using the same |
Mar. 13, 2001 |
| 6127015 |
Floor mat system |
Oct. 3, 2000 |
| 6101768 |
Center supported ventilated raised floor with grated core |
Aug. 15, 2000 |
| 6088976 |
Removable non-skid step pad |
Jul. 18, 2000 |
| 6061979 |
Inline skating sports floor |
May. 16, 2000 |
| 5992106 |
Hexagon tile with equilateral reinforcement |
Nov. 30, 1999 |
| 5979139 |
Lightweight, self-supporting paneling |
Nov. 9, 1999 |
| 5950378 |
Composite modular floor tile |
Sep. 14, 1999 |
| 5907934 |
Interfacing floor tile |
Jun. 1, 1999 |
| 5815870 |
Reversible ramp and method for fabricating same |
Oct. 6, 1998 |
| 5787654 |
Isogrid tile |
Aug. 4, 1998 |
| 5666772 |
Patio/floor assembly |
Sep. 16, 1997 |
| 5587218 |
Surface covering |
Dec. 24, 1996 |
| 5510061 |
Non-welded support plate member |
Apr. 23, 1996 |
| 5476339 |
Access pathway for deployment over uneven terrain surfaces that are resistant to the rolling traction on a wheelchair |
Dec. 19, 1995 |
| 5364204 |
Cover for an area of ground |
Nov. 15, 1994 |
| 5291714 |
Grating assembly |
Mar. 8, 1994 |
| 5274977 |
Decking system |
Jan. 4, 1994 |
| 5250340 |
Mat for stabilizing particulate materials |
Oct. 5, 1993 |
| 5215802 |
Mat |
Jun. 1, 1993 |
| 5190799 |
Floor covering with integral walking surface |
Mar. 2, 1993 |
| 5050361 |
Deck structure |
Sep. 24, 1991 |
| 5036639 |
Plate for false floors |
Aug. 6, 1991 |
| 5009045 |
Plank structure for boat dock and the like |
Apr. 23, 1991 |
| 4952434 |
Cushioning floor mat |
Aug. 28, 1990 |
| 4950519 |
Interconnectable artificial lawn sections |
Aug. 21, 1990 |
| 4883394 |
Cover with integral fastening means |
Nov. 28, 1989 |
| 4880081 |
Oil tank catwalk assembly for automotive service facility |
Nov. 14, 1989 |
| 4860506 |
Floor panel for floating floor |
Aug. 29, 1989 |
| 4807412 |
Grating or mat element |
Feb. 28, 1989 |
| 4791763 |
Panel system for a clean room |
Dec. 20, 1988 |
| 4730424 |
Rooftop walkway |
Mar. 15, 1988 |
| 4712340 |
Decking support means |
Dec. 15, 1987 |
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