B42F 13/30
Filing appliances with means for engaging perforations or slots: having a set
Official title: having a set of rods within a set of tubes for a substantial distance when closed
B42F13/30 (Filing appliances with means for engaging perforations or slots: having a set) appears on 21 US grants and 6 published applications in this corpus.
Search patents in B42F- Granted patents
- 21
- Published applications
- 6
- Assignees
- 13
- Inventors
- 35
- Latest grant
- 1 Sep 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Rhinestone art kit and method5 Jul 2018US 2018/0186086 A1
- Two-way moving structure of a file folder23 May 2013US 2013/0129404 A1
- Adjustable Document File Binding Device28 Feb 2008US 2008/0050204 A1Shenzhen Wang Ling Science and Technology Development Co., Ltd.
- Paper binder3 May 2007US 2007/0098486 A1Danny & Hudson Inc.
- Document binder3 Feb 2005US 2005/0025562 A1
Most cited
By later US patents
- Modular book binder21US 5,338,125 A1994
- Device for interlocking perforated writing material17US 4,175,880 APostalia GmbH · 1979
- Loose leaf binder10US 4,056,326 ACrawford Industries, Inc. · 1977
- Loose leaf binder with flexible telescopic post assemblies and magnetically retained bar9US 4,136,981 A1979
- Film stacker clip9US 5,018,895 A1991