US2176355A
Untitled record
Abstract
This record has no abstract on file.
Term
Term ended
Expired 17 October 1956, 69.9 years ago.
- Granted
- Expired
- Today
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US8863858B2 | Cited by | United States of America | Applicant |
| US5647444A | Cited by | United States of America | Search report |
| US2766765A | Cited by | United States of America | Search report |
| US7836946B2 | Cited by | United States of America | Applicant |
| US5184681A | Cited by | United States of America | Search report |
| US2011168392A1 | Cited by | United States of America | Pre-grant |
| US8322432B2 | Cited by | United States of America | Applicant |
| US7237623B2 | Cited by | United States of America | Applicant |
| US8353337B2 | Cited by | United States of America | Applicant |
| US4949796A | Cited by | United States of America | Search report |
| US4319756A | Cited by | United States of America | Search report |
| US8347983B2 | Cited by | United States of America | Applicant |
| US9404346B2 | Cited by | United States of America | Applicant |
| US6263982B1 | Cited by | United States of America | Applicant |
| US2746709A | Cited by | United States of America | Search report |
| US7448454B2 | Cited by | United States of America | Applicant |
| US8714240B2 | Cited by | United States of America | Applicant |
| US8770297B2 | Cited by | United States of America | Applicant |
| US4208056A | Cited by | United States of America | Search report |
| US10087701B2 | Cited by | United States of America | Applicant |
| US7487837B2 | Cited by | United States of America | Applicant |
| US9175542B2 | Cited by | United States of America | Applicant |
| US8939235B2 | Cited by | United States of America | Applicant |
| US3400938A | Cited by | United States of America | Search report |
| US10024154B2 | Cited by | United States of America | Applicant |
| US6913092B2 | Cited by | United States of America | Applicant |
| US6470975B1 | Cited by | United States of America | Applicant |
| US9260927B2 | Cited by | United States of America | Applicant |
| US6138774A | Cited by | United States of America | Search report |
| US8113291B2 | Cited by | United States of America | Applicant |
| US8844652B2 | Cited by | United States of America | Applicant |
| US3492007A | Cited by | United States of America | Search report |
| US8347982B2 | Cited by | United States of America | Applicant |
| US8636087B2 | Cited by | United States of America | Applicant |
| US8408297B2 | Cited by | United States of America | Applicant |
| US8701796B2 | Cited by | United States of America | Applicant |
| US7926593B2 | Cited by | United States of America | Applicant |
| US9784073B2 | Cited by | United States of America | Applicant |
| US8286734B2 | Cited by | United States of America | Applicant |
| US9359853B2 | Cited by | United States of America | Applicant |
| GB2579676A | Cited by | United Kingdom | Search report |
| US5662181A | Cited by | United States of America | Search report |
| US9004181B2 | Cited by | United States of America | Applicant |
| US10041335B2 | Cited by | United States of America | Applicant |
| US7934545B2 | Cited by | United States of America | Applicant |
| US2846247A | Cited by | United States of America | Search report |
| US7997345B2 | Cited by | United States of America | Applicant |
| US7159669B2 | Cited by | United States of America | Applicant |
| US7258171B2 | Cited by | United States of America | Applicant |
| US2548412A | Cited by | United States of America | Search report |
| US9334711B2 | Cited by | United States of America | Applicant |
| US8826988B2 | Cited by | United States of America | Applicant |
| US2506680A | Cited by | United States of America | Search report |
Numbers
- Application
- 2176355
Classification
- CPC, 3
- E21B33/085
- E21B17/00
- Y10S277/908
- IPC, 2
- E21B17 00
- E21B33 08