A47C 23/32
Combinations of nets with springs in compression
Official title: Combinations of nets with springs in compression; Frames therefor
A47C23/32 (Combinations of nets with springs in compression) appears on 20 US grants and 0 published applications in this corpus.
Search patents in A47C- Granted patents
- 20
- Published applications
- 0
- Assignees
- 13
- Inventors
- 23
- Latest grant
- 21 Dec 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the production of synthesis gas21 Dec 2004US 6,833,013 B1SNAMPROGETTI S.p. A.
- Structure for suspension in articles of furniture or the like and method for the assembly of said structure21 Mar 2000US 6,039,404 ACintal S.a.s. di Fontana Paola & C
- Drop-in seat spring unit assembly20 Jul 1999US 5,924,682 AL&P Property Management Company
- Box spring assembly with a grid structure formed of both basic and spring wire21 Feb 1989US 4,805,883 AHoover Group, Inc.
- Bedding box spring15 Mar 1988US 4,730,357 ALeggett & Platt, Incorporated
No published applications in this class yet.
Most cited
By later US patents
- Box spring assembly30US 4,470,584 AHoover Universal, Inc. · 1984
- Drop-in seat spring unit assembly27US 5,924,682 AL&P Property Management Company · 1999
- Box spring assembly with arcuate bendable springs21US 4,251,892 AHoover Universal, Inc. · 1981
- Box spring assembly16US 3,990,121 ALear Siegler, Inc. · 1976
- Spring unit support and assembly15US 3,953,903 ASteadley Company · 1976