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Class Information
Number: 5/252
Name: Beds > Bedsteads > Having bottom > Of springs > Spiral springs only > Intermediate frames and connections
Description: Devices comprising horizontal frames or connections interposed between the upper and lower surfaces of spring assemblages forming "double-deck" springs or connecting together the waists or central parts of the spring units.

Patents under this class:

Patent Number Title Of Patent Date Issued
6371458 Spring mattress Apr. 16, 2002
6272700 Dual layer bedding or seating product Aug. 14, 2001
6101651 Pillow core Aug. 15, 2000
5713088 Innerspring construction with springs having free terminal convolutions Feb. 3, 1998
5401007 Wire spring assemblies made of nestably stackable half units Mar. 28, 1995
4918773 Posturized spring bedding product Apr. 24, 1990

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