Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 5/257
Name: Beds > Bedsteads > Having bottom > Of springs > Elements > Top-coil unions
Description: Devices, for means of connecting the end of the top coil of a spiral spring to the adjacent part of a lower turn of the same spring to form a closed top loop.










Patents under this class:

Patent Number Title Of Patent Date Issued
6578213 Stackable bedding foundation Jun. 17, 2003
5575460 Spring core for a mattress Nov. 19, 1996
4817924 Spring core for a mattress Apr. 4, 1989
4619445 Spring unit Oct. 28, 1986
4236262 Support grid and spring unit for a box spring foundation unit Dec. 2, 1980
4069525 Firm foundation unit for mattresses Jan. 24, 1978
4068330 Woven spring unit Jan. 17, 1978
4057860 Box spring assembly Nov. 15, 1977
4012801 Box spring assembly Mar. 22, 1977











 
 
  Recently Added Patents
Embedded bonding pad for image sensors
Method for producing interferon alpha 5
Methods and apparatus for preserving privacy in an RFID system
Wide bandwidth hybrid antenna for combination EAS and RFID label or tag
Imaging device, method and computer readable medium
Electron-beam lithography method with correction of line ends by insertion of contrast patterns
Blur correction device and imaging apparatus
  Randomly Featured Patents
Dual track retainer or similar article
Peripheral event indication with pir-based motion detector
Chair
Light source device and image reader
Six-degree virtual pivot controller
Laminated sheet and method of making same
Wireless communication device and method for communicating in site selection diversity mode
Semiconductor light emitting device with first and second leads
High-speed transmission of blood stream gases
Microfilm reader with microfilm and reticle images provided to each of two binocular eyepieces