Patent DE844442C successfully refreshed from Google Patents.
DE844442C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the preparation of 1, 1-dihalo-1, 3-alkadienes
Assignee: Bataafsche Petroleum Maatschappij NV
•
Filing: 1950-12-24
•
Granted: 1952-07-21
•
Expires: 1970-12-24
Abstract
No abstract record available.
Inventors
- 👤 Eduard Cornelis Kooyman
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 04:38
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/25
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.