US2781663A
Well fluid sampling device
Abstract
This record has no abstract on file.
Term
Term ended
Expired 19 February 1974, 52.6 years ago.
- Priority and filed
- Granted
- Expired
- Today
2 sheets
Sheet 1 Sheet 2
Every citation, both ways
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| US5460224A | Cited by | United States of America | Search report |
| WO9410423A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
| US3059695A | Cited by | United States of America | Search report |
| EP1989397A1 | Cited by | European Patent Office (EPO) | Search report |
| US6098020A | Cited by | United States of America | Search report |
| US5794696A | Cited by | United States of America | Search report |
| US11549867B2 | Cited by | United States of America | Applicant |
| US3187567A | Cited by | United States of America | Search report |
| NL8602215A | Cited by | Netherlands (Kingdom of the) | Search report |
| US7111682B2 | Cited by | United States of America | Applicant |
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| US3078862A | Cited by | United States of America | Search report |
| US2011048122A1 | Cited by | United States of America | Pre-grant |
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| US5955666A | Cited by | United States of America | Search report |
| US2945541A | Cited by | United States of America | Search report |
| US5922975A | Cited by | United States of America | Search report |
| EP1989397A4 | Cited by | European Patent Office (EPO) | Search report |
| US3384170A | Cited by | United States of America | Search report |
| US3056288A | Cited by | United States of America | Search report |
| US3062012A | Cited by | United States of America | Search report |
| US2022213677A1 | Cited by | United States of America | Search report |
| US3448611A | Cited by | United States of America | Search report |
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| US4860580A | Cited by | United States of America | Search report |
| US3369405A | Cited by | United States of America | Search report |
| US3739845A | Cited by | United States of America | Search report |
| US2942668A | Cited by | United States of America | Search report |
| WO2020163274A1 | Cited by | World Intellectual Property Organization (WIPO) | International search |
| US3871218A | Cited by | United States of America | Search report |
| US7360597B2 | Cited by | United States of America | Applicant |
| US2007017674A1 | Cited by | United States of America | Pre-grant |
| US5490561A | Cited by | United States of America | Search report |
| US8776591B2 | Cited by | United States of America | Search report |
| US5549159A | Cited by | United States of America | Search report |
| US1652472A | Cites | United States of America | Search report |
| US2189919A | Cites | United States of America | Search report |
| US2564198A | Cites | United States of America | Search report |
| US2581070A | Cites | United States of America | Search report |
| US2688872A | Cites | United States of America | Search report |
1 member in 1 office
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 55946156 | United States of America | A | |
| US19560559461 | – | – | – |
Members1
| Document | Office | Kind | |
|---|---|---|---|
| US2781663AThis record | United States of America | A |
Numbers
- Publication, DOCDB
- 2781663
- Publication, EPODOC
- US2781663
- Application
- 559461
- Application, DOCDB
- 55946156
- Application, EPODOC
- US19560559461
Titles
- English
- Well fluid sampling device
Classification
- CPC, 4
- E21B33/124
- E21B33/1243
- E21B49/081
- E21B49/083
- IPC, 2
- E21B33 124
- E21B49 08