Patent DE742255C successfully refreshed from Google Patents.
DE742255C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Production of alkali amides by reacting ammonia with alkali metal
Assignee: Bataafsche Petroleum Maatschappij NV
•
Filing: 1941-09-26
•
Granted: 1943-12-01
•
Expires: 1961-09-26
Abstract
No abstract record available.
Inventors
- 👤 Johannes Thomas Hackmann
- 👤 Johan Overhoff
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-08 09:47
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/73; C01; C01B; C01B21/00; C01B21/082; C01B21/087; C01B21/092; C01B21/0923; C01B21/0926
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.