US1380554A
Drill
Abstract
This record has no abstract on file.
Term
Term ended
Expired 7 June 1938, 88.3 years ago.
- Priority and filed
- Granted
- Expired
- Today
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US2009181791A1 | Cited by | United States of America | Pre-grant |
| US2011003648A1 | Cited by | United States of America | Pre-grant |
| US8142307B2 | Cited by | United States of America | Applicant |
| US2634103A | Cited by | United States of America | Search report |
| US7736243B2 | Cited by | United States of America | Search report |
| WO2008062094A1 | Cited by | World Intellectual Property Organization (WIPO) | Search report |
Numbers
- Application
- 283954
Titles
- English
- Drill
Classification
- CPC, 2
- E21B10/62
- Y10T403/7016
- IPC, 1
- E21B10 62