US1444404A
Index-card guide
Abstract
This record has no abstract on file.
Term
Term ended
Expired 6 February 1940, 86.6 years ago.
- Priority and filed
- Granted
- Expired
- Today
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US2842261A | Cited by | United States of America | Search report |
| US7841114B2 | Cited by | United States of America | Applicant |
| US2845010A | Cited by | United States of America | Search report |
| US2006016112A1 | Cited by | United States of America | Pre-grant |
Numbers
- Application
- 509801
Titles
- English
- Index-card guide
Classification
- CPC, 1
- B42F19/00
- IPC, 1
- B42F19 00