Patent US1709389A successfully refreshed from Google Patents.
Patent CH357250A successfully refreshed from Google Patents.
CH357250A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Automatic valve for the regeneration of an absorbent filter
Assignee: Matteis Jacques De
•
Filing: 1959-10-19
•
Granted: —
•
Expires: 1979-10-19
Abstract
No abstract record available.
Inventors
- 👤 Matteis Jacques De
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-31 13:37
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/025; F16K15/026
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.