B28C 5/4251
Telescopic or foldable chutes
Official title: {telescopic or foldable chutes}
B28C5/4251 (Telescopic or foldable chutes) appears on 23 US grants and 10 published applications in this corpus.
Search patents in B28C- Granted patents
- 23
- Published applications
- 10
- Assignees
- 8
- Inventors
- 46
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Concrete mixer vehicle6 May 2025US 12,290,959 B2Oshkosh Corporation
- Power fold and swing chute assembly22 Mar 2022US 11,279,561 B2Con-Tech Manufacturing, Inc.
- Power fold and swing chute assembly7 Jul 2020US 10,703,569 B2Con-Tech Manufacturing, Inc.
- Swinging chute linkage assembly8 Nov 2011US 8,051,970 B2McNeilus Truck and Manufacturing, Inc.
- Concrete chute apparatus22 Mar 2005US 6,868,953 B1
- Concrete mixer vehicle24 Jul 2025US 2025/0236049 A1Oshkosh Corporation
- Concrete mixer vehicle with idle reduction7 Nov 2024US 2024/0367347 A1Oshkosh Corporation
- Mixer vehicle with twin screw mixer27 Jun 2024US 2024/0207800 A1Oshkosh Corporation
- Concrete mixer vehicle10 Mar 2022US 2022/0072736 A1Oshkosh Corporation
- Power fold and swing chute assembly17 Dec 2020US 2020/0391947 A1Con-Tech Manufacturing, Inc.
Most cited
By later US patents
- Extensible discharge chute assembly38US 5,192,178 A1993
- Telescopic chute for mixer discharge30US 4,711,334 A1987
- Polymeric composite discharge chutes for concrete having a wear resistant liner27US 5,184,706 AMcNeilus Truck and Manufacturing, Inc. · 1993
- Telescopic chute for a mixer truck19US 5,035,313 A1991
- Telescopic chute assembly17US 6,186,304 B12001