JPS577269A
Electrostatic air filter, device for enriching negative ion or negative aerosol to air and device for forming fixed direction current of gassy medium
Abstract
This record has no abstract on file.
Term
Term ended
Projected expiry passed 6 May 2001, 25.4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
2 sheets
Sheet 1 Sheet 2
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| JP32005676A | Cites | Japan | Search report |
| JP38008188A | Cites | Japan | Search report |
| JPS4322555Y1 | Cites | Japan | Search report |
| JPS4954970A | Cites | Japan | Search report |
| JPS50100673A | Cites | Japan | Search report |
| JPS514137U | Cites | Japan | Search report |
| JPS5482778A | Cites | Japan | Search report |
16 members in 7 offices
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 239780 | Austria | A |
Members16
| Document | Office | Kind | |
|---|---|---|---|
| EP0029421A1 | European Patent Office (EPO) | A1 | |
| BR8005881A | Brazil | A | |
| BR8005881A | Brazil | A | |
| JPS5676000A | Japan | A | |
| EP0039669A2 | European Patent Office (EPO) | A2 | |
| JPS577269AThis record | Japan | A | |
| ATA239780A | Austria | A | |
| US4380720A | United States of America | A | |
| EP0039669A3 | European Patent Office (EPO) | A3 | |
| AT372301B | Austria | B | |
| CA1169461A | Canada | A | |
| CA1172303A | Canada | A | |
| EP0039669B1 | European Patent Office (EPO) | B1 | |
| DE3173286D1 | Germany | D1 | |
| EP0029421B1 | European Patent Office (EPO) | B1 | |
| DE3071704D1 | Germany | D1 |
Numbers
- Application
- 6709781
Titles
- English
- ELECTROSTATIC AIR FILTER, DEVICE FOR ENRICHING NEGATIVE ION OR NEGATIVE AEROSOL TO AIR AND DEVICE FOR FORMING FIXED DIRECTION CURRENT OF GASSY MEDIUM
Classification
- IPC, 5
- B03C3 41
- B03C3 12
- B03C3 16
- B03C3 40
- B03C3 45