Patent DE473933C successfully refreshed from Google Patents.
DE473933C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Suspended ceilings for industrial ovens and firings
Assignee: FREIENWALDER SCHAMOTTEFABRIK H
•
Filing: —
•
Granted: 1929-03-23
•
Expires: 1946-03-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 19:07
CPC Classifications
F; F23; F23M; F23M5/00; F23M5/04; F27; F27D; F27D1/00; F27D1/14; F27D1/145; F27D1/147; F27D1/148
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.