| |
 |
|
Class Information
Number: 248/526
Name: Supports > Staff type > Stand or base > Having staff retaining or centering means > Plural means, vertically spaced > Including pivoted, staff-engaging supporting legs > Engagement is responsive to weight or thrust of staff
Description: Support wherein the exertion of a downward force by the staff (i.e., resulting either from its weight or from an externally-applied force) causes the supporting legs to grip the staff more tightly.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6749167 |
Holder for shaped beverage containers |
Jun. 15, 2004 |
| 6681519 |
Self-clamping christmas tree stand |
Jan. 27, 2004 |
| 6419202 |
Christmas-tree stand |
Jul. 16, 2002 |
| 5938167 |
Christmas tree stand |
Aug. 17, 1999 |
| 5673893 |
Self-adjusting portable tree stand |
Oct. 7, 1997 |
| 5535977 |
Supporting structure to mount and hold cylindrical shaped element |
Jul. 16, 1996 |
| 5407168 |
Stand for trees and other cylindrical objects |
Apr. 18, 1995 |
| 5337990 |
Dual purpose adjustable tree stand unit |
Aug. 16, 1994 |
| 5292101 |
Lockable leveling structure |
Mar. 8, 1994 |
| 5195715 |
Christmas tree holder |
Mar. 23, 1993 |
| 4949502 |
Christmas tree holder |
Aug. 21, 1990 |
| 4894949 |
Christmas tree holder |
Jan. 23, 1990 |
| 4834335 |
Tree stand |
May. 30, 1989 |
| 4796382 |
Christmas tree holder |
Jan. 10, 1989 |
| 4771978 |
Articulated vertical support stand |
Sep. 20, 1988 |
| 4676471 |
Portable stand for a tree |
Jun. 30, 1987 |
| 4611781 |
Support stand in particular for holding trees to be put up |
Sep. 16, 1986 |
| 4007901 |
Christmas tree stand |
Feb. 15, 1977 |
|
|
|
