G04C 17/0075
Indicating the time optically by electric means: by drums or drum-like devices
Official title: {by drums or drum-like devices}
G04C17/0075 (Indicating the time optically by electric means: by drums or drum-like devices) appears on 7 US grants and 2 published applications in this corpus.
Search patents in G04C- Granted patents
- 7
- Published applications
- 2
- Assignees
- 3
- Inventors
- 9
- Latest grant
- 24 May 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Clock-driving device combined with a conventional core24 May 2005US 6,898,154 B1
- Children's timer device for indicating waking time and sleeping time21 May 2002US 6,392,963 B1
- Watch driven elapsed time indicator apparatus and its method of manufacture and use3 Dec 1996US 5,581,520 AElectrodynamics, Inc.
- Transfigurating timepieces15 Aug 1989US 4,858,209 A
- Elapsed time indicator7 Jul 1981US 4,277,841 AGeneral Time Corporation
Most cited
By later US patents
- Transfigurating timepieces13US 4,858,209 A1989
- Children's timer device for indicating waking time and sleeping time9US 6,392,963 B12002
- Digital clock7US 3,953,965 AKabushiki Kaisha Tamura Denki Seisakusho · 1976
- Automatic calendar4US 4,031,642 A1977
- Elapsed time indicator3US 4,277,841 AGeneral Time Corporation · 1981