E21D 15/38
With longitudinally-divided upper or lower prop parts
Official title: with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
E21D15/38 (With longitudinally-divided upper or lower prop parts) appears on 3 US grants and 0 published applications in this corpus.
Search patents in E21D- Granted patents
- 3
- Published applications
- 0
- Assignees
- 0
- Inventors
- 1
- Latest grant
- 20 Jul 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
No published applications in this class yet.
Most cited
By later US patents