USB361569I5
Communication system employing spectrum folding
Abstract
This record has no abstract on file.
Term
Term ended
Projected expiry passed 28 January 1992, 34.7 years ago.
- Priority and filed
- Published
- Projected expiry
- Today
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| GB2188820A | Cited by | United Kingdom | Search report |
| GB2188820B | Cited by | United Kingdom | Search report |
| US1773126A | Cites | United States of America | Search report |
| US1948973A | Cites | United States of America | Search report |
| US2014081A | Cites | United States of America | Search report |
| US3030450A | Cites | United States of America | Search report |
| US3069506A | Cites | United States of America | Search report |
| US3246084A | Cites | United States of America | Search report |
2 priority claims, no other members on record
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 36156973 | United States of America | A | |
| US19730361569 | – | – | – |
Numbers
- Publication, DOCDB
- B361569
- Publication, EPODOC
- USB361569I
- Application
- 361569
- Application, DOCDB
- 36156973
- Application, EPODOC
- US19730361569
Classification
- CPC, 2
- H04B1/667
- H04B3/00
- IPC, 2
- H04B1 66
- H04B3 00