A45D 2/32
With positive non-return means
Official title: with positive non-return means, e.g. ratchet
A45D2/32 (With positive non-return means) appears on 10 US grants and 0 published applications in this corpus.
Search patents in A45D- Granted patents
- 10
- Published applications
- 0
- Assignees
- 2
- Inventors
- 13
- Latest grant
- 30 Nov 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hair roller30 Nov 1999US 5,992,425 AWhite House Inc.
- Hair roller9 Nov 1999US 5,979,464 AWhite House Inc.
- Double back rod12 Dec 1995US 5,474,096 A
- Hair curler having linking element with crossbar31 May 1994US 5,316,021 A
- Process and roller for applying a perm to previously permed hair4 May 1993US 5,207,235 A
No published applications in this class yet.
Most cited
By later US patents