FIG. 1 is a perspective view of a ladder hinge pair as coupled to a portion of a ladder showing our new design;
FIG. 2 is a reversed perspective view of the ladder hinge pair shown in FIG. 1; and,
FIG. 3 is a reversed perspective view of the ladder hinge pair shown in FIG. 1 with the hinges in an extended position.
The broken lines showing a ladder is for illustrative purposes only and form no part of the claimed design.
| Patent |
Priority |
Assignee |
Title |
| 1973774, |
|
|
|
| 2144440, |
|
|
|
| 2186119, |
|
|
|
| 3002582, |
|
|
|
| 3318413, |
|
|
|
| 3327385, |
|
|
|
| 3692143, |
|
|
|
| 3811151, |
|
|
|
| 3849834, |
|
|
|
| 4182431, |
Mar 13 1978 |
WEST ONE BANK, UTAH |
Combination extension and step ladder rungs therefor |
| 4210224, |
Jan 05 1979 |
KUMMERLIN, WALTER |
Longitudinally variable ladder |
| 4371055, |
Nov 07 1980 |
WEST ONE BANK, UTAH |
Method of manufacturing a fiberglass ladder |
| 4376470, |
Nov 07 1980 |
WEST ONE BANK, UTAH |
Fiberglass ladder |
| 4407045, |
Dec 21 1981 |
U S BANK NATIONAL ASSOICATION |
Ladder hinge and multi-position locking mechanism therefor |
| 4474264, |
Mar 26 1982 |
|
Collapsible multi-purpose ladder |
| 453193, |
|
|
|
| 4540306, |
Oct 19 1983 |
|
Positioning joint for folding ladders |
| 4566150, |
Dec 21 1981 |
U S BANK NATIONAL ASSOICATION |
Ladder hinge and multi-position locking mechanism therefor |
| 4597687, |
Jun 03 1982 |
|
Device for connecting a tube and a sheet metal element |
| 4656721, |
Nov 19 1984 |
WIP TECHNOLOGIES, INC ; R D WERNER MANUFACTURING COMPANY, INC |
Apparatus and methods for making rail-to-rung joints for ladders and joints for other structural elements |
| 4697305, |
Feb 14 1985 |
U S BANK NATIONAL ASSOICATION |
Release mechanism for locking hinge for multi-positioned ladder |
| 4698896, |
May 25 1983 |
Vaw Leichtmetall G.m.b.H. |
Method of applying hollow section coupling to other sections |
| 4773503, |
Sep 11 1987 |
Robert L., Pease; Kenneth T., Feeser |
Ladder hinge |
| 4890950, |
Nov 08 1988 |
|
Positioning joint for a folding ladder |
| 4947959, |
Mar 14 1989 |
|
Folding ladder |
| 4967879, |
Feb 23 1988 |
Zarges Leichtbau GmbH |
Ladder |
| 4974701, |
Nov 27 1989 |
LOUISVILLE LADDER CORP |
Step ladder construction |
| 5002153, |
Jul 30 1990 |
|
Ladder structure |
| 5279387, |
Sep 25 1991 |
LOUISVILLE LADDER INC |
Articulated ladder assembly |
| 5353892, |
Oct 14 1993 |
|
Ladder joint for a folding collapsible ladder |
| 5359812, |
Oct 25 1993 |
|
Finger guard |
| 5366051, |
Aug 10 1990 |
WIP TECHNOLOGIES, INC |
Hollow plastic ladder |
| 5419084, |
Oct 31 1991 |
FINGERSAFE LIMITED |
Door jamb finger guard |
| 5515942, |
Mar 26 1991 |
Palmerston Extension Ladder Company Limited |
Ladder stiles and ladders produced therefrom |
| 5954157, |
Mar 04 1997 |
FiberLite Technologies, Inc. |
Fiber/resin composite ladder and accompanying accessories |
| 5966777, |
Apr 17 1998 |
Versare Solutions, LLC |
Hinge |
| 6032759, |
Aug 03 1998 |
Dofair Company, Ltd |
Ladder with anti-deformed side rails |
| 6141909, |
Jun 11 1997 |
Kreger-Hanson, Incorporated |
Safety guards for door jambs |
| 6220389, |
Mar 04 1997 |
Krause-Werk GmbH & Co. KG |
Folding ladder |
| 6269909, |
Nov 15 1999 |
FIBERLITE TECHNOLOGIES, INC |
Fiberglass extension ladder and methods for manufacturing the same |
| 6298605, |
Mar 10 1999 |
|
Mechanical safety device for a door pivotally mounted on a frame |
| 6343406, |
Aug 15 2000 |
|
Hinge on ladder |
| 6533882, |
Aug 12 1996 |
OCV Intellectual Capital, LLC |
Chemical treatments for fibers and wire-coated composite strands for molding fiber-reinforced thermoplastic composite articles |
| 6866117, |
Apr 05 2002 |
WING ENTERPRISES, INC |
Light weight ladder systems and methods |
| 7047597, |
Feb 19 2003 |
VULCAN LADDER USA |
Hinge for folding ladders |
| 20040140156, |
|
|
|
| D248777, |
Jun 01 1976 |
Little Giant Industries, Inc. |
Ladder platform |
| D309502, |
Sep 23 1988 |
U S BANK NATIONAL ASSOICATION |
Hinge for ladders and the like |
| D359366, |
Jul 14 1993 |
|
Ladder leveler |
| D459483, |
Jul 09 2001 |
|
Ladder immobilizing trough saver |
| DE19539157, |
|
|
|
| EP324885, |
|
|
|
| NL1002235, |
|
|
|
| RE30020, |
May 05 1978 |
WEST ONE BANK, UTAH |
Foldable work platform |