E21C 29/08
Anchoring arrangements
Official title: Anchoring arrangements (for anchoring of conveyors only E21F13/00)
E21C29/08 (Anchoring arrangements) appears on 3 US grants and 0 published applications in this corpus.
Search patents in E21C- Granted patents
- 3
- Published applications
- 0
- Assignees
- 3
- Inventors
- 8
- Latest grant
- 3 Aug 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 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 | 0 | 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 |
By publication year. Applications have been published since 2001.
Recent patents
- Drive system having a pin drive chain for a cutting machine for underground mining3 Aug 1999US 5,931,540 ADBT Deutsche Bergbau-Technik GmbH
- Mechanism for advancing continuous mining machine through mining cycle and tramming modes17 Mar 1981US 4,256,343 AFairchild Incorporated
- Device for guying a movable cutting machine2 May 1978US 4,087,132 AVereinigte Osterreichische Eisen- und Stahlwerke-Alpine Montan Aktiengesellschaft
No published applications in this class yet.
Most cited
By later US patents