FR2178978B1 - - Google Patents
Info
- Publication number
- FR2178978B1 FR2178978B1 FR7311671A FR7311671A FR2178978B1 FR 2178978 B1 FR2178978 B1 FR 2178978B1 FR 7311671 A FR7311671 A FR 7311671A FR 7311671 A FR7311671 A FR 7311671A FR 2178978 B1 FR2178978 B1 FR 2178978B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722216117 DE2216117C3 (en) | 1972-04-01 | 1972-04-01 | Process for the preparation of p-phenylenediamine |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2178978A1 FR2178978A1 (en) | 1973-11-16 |
FR2178978B1 true FR2178978B1 (en) | 1978-03-03 |
Family
ID=5840932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7311671A Expired FR2178978B1 (en) | 1972-04-01 | 1973-03-30 |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5754499B2 (en) |
AT (1) | AT321269B (en) |
BE (1) | BE797561A (en) |
CA (1) | CA998068A (en) |
CH (1) | CH577954A5 (en) |
DD (1) | DD106636A5 (en) |
DE (1) | DE2216117C3 (en) |
ES (1) | ES413228A1 (en) |
FR (1) | FR2178978B1 (en) |
GB (1) | GB1399406A (en) |
IT (1) | IT989535B (en) |
NL (1) | NL7304531A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53122611A (en) * | 1977-03-31 | 1978-10-26 | Denki Kagaku Kogyo Kk | Desulfurizing agent for molten metal |
EP0052511B1 (en) * | 1980-11-17 | 1984-03-07 | E.I. Du Pont De Nemours And Company | Production of p-phenylenediamine |
-
1972
- 1972-04-01 DE DE19722216117 patent/DE2216117C3/en not_active Expired
-
1973
- 1973-03-13 IT IT4878073A patent/IT989535B/en active
- 1973-03-28 CA CA167,379A patent/CA998068A/en not_active Expired
- 1973-03-29 DD DD16982073A patent/DD106636A5/xx unknown
- 1973-03-30 GB GB1543973A patent/GB1399406A/en not_active Expired
- 1973-03-30 BE BE129464A patent/BE797561A/en unknown
- 1973-03-30 FR FR7311671A patent/FR2178978B1/fr not_active Expired
- 1973-03-30 CH CH459773A patent/CH577954A5/xx not_active IP Right Cessation
- 1973-03-30 AT AT282273A patent/AT321269B/en not_active IP Right Cessation
- 1973-03-31 NL NL7304531A patent/NL7304531A/xx not_active Application Discontinuation
- 1973-03-31 ES ES413228A patent/ES413228A1/en not_active Expired
- 1973-04-02 JP JP3772073A patent/JPS5754499B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DD106636A5 (en) | 1974-06-20 |
CH577954A5 (en) | 1976-07-30 |
JPS4913126A (en) | 1974-02-05 |
GB1399406A (en) | 1975-07-02 |
FR2178978A1 (en) | 1973-11-16 |
DE2216117A1 (en) | 1973-10-04 |
DE2216117B2 (en) | 1980-07-31 |
DE2216117C3 (en) | 1981-04-02 |
JPS5754499B2 (en) | 1982-11-18 |
NL7304531A (en) | 1973-10-03 |
ES413228A1 (en) | 1976-01-01 |
CA998068A (en) | 1976-10-05 |
BE797561A (en) | 1973-07-16 |
IT989535B (en) | 1975-06-10 |
AT321269B (en) | 1975-03-25 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |