E04G 21/1866
For making arches
Official title: {for making arches}
E04G21/1866 (For making arches) appears on 19 US grants and 12 published applications in this corpus.
Search patents in E04G- Granted patents
- 19
- Published applications
- 12
- Assignees
- 5
- Inventors
- 27
- Latest grant
- 10 Mar 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Arch-support system10 Mar 2020US 10,584,502 B2Excel Project Management Ltd.
- Formwork for use in the construction of arched structures and method of constructing arched structures28 Nov 2017US 9,828,760 B2Lock-Block Ltd.
- Formwork for use in the construction of arched structures and a method of constructing arched structures1 Nov 2016US 9,481,993 B2Lock-Block Ltd.
- Archway measuring device14 Sep 2010US 7,793,421 B2
- Removable arch form assembly and method of installing11 May 2010US 7,712,262 B2
- Formwork for use in the construction of arched structures and method of constructing arched structures22 Mar 2018US 2018/0080219 A1Lock-Block Ltd.
- Arch-support system15 Mar 2018US 2018/0073261 A1Excel Project Management Ltd.
- Formwork for use in the construction of arched structures and method of constructing arched structures23 Feb 2017US 2017/0051496 A1Lock-Block Ltd.
- Formwork for use in the construction of arched structures and a method of constructing arched structures20 Sep 2012US 2012/0233934 A1Lock-Block Ltd.
- Removable Arch Form Assembly and Method of Installing8 Jul 2010US 2010/0170191 A1
Most cited
By later US patents
- Arch forming assembly23US 4,325,207 ACanadian Patents and Development Limited · 1982
- Apparatus and method for constructing a masonry header15US 5,537,805 A1996
- Arch mold apparatus and method for making arches11US 6,408,576 B12002
- Adjustable brick support ring5US 5,101,608 A1992
- Masonry arch support apparatus and method5US 5,584,159 A1996