Y10T 74/1552
Spring or weight return
Y10T74/1552 (Spring or weight return) appears on 15 US grants and 3 published applications in this corpus.
Search patents in Y10T- Granted patents
- 15
- Published applications
- 3
- Assignees
- 7
- Inventors
- 17
- Latest grant
- 7 Oct 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Memory protection device and computer7 Oct 2014US 8,854,806 B2
- Operational mechanism for movable body20 Dec 2011US 8,079,446 B2Nifco Inc.
- Apparatus, methods, and articles of manufacture for a terminator positioning system31 May 2005US 6,900,610 B2Tyco Electronics Corporation
- Arrangement for converting reciprocating motion into even rotational motion4 Sep 1990US 4,953,415 ATunturipyora Oy
- Operator powered skateboard28 Feb 1989US 4,807,896 A
Most cited
By later US patents
- Bilateral isokinetic exerciser110US 4,082,267 A1978
- Occupant propellable wheelchair47US 4,453,729 A1984
- Rotary drive mechanism for energizing toys, kinetic sculptures, or the like31US 4,637,152 A1987
- Arrangement for converting reciprocating motion into even rotational motion30US 4,953,415 ATunturipyora Oy · 1990
- Clutch mechanism for a toy vehicle29US 4,135,328 AMattel, Inc. · 1979