Patent FR398461A successfully refreshed from Google Patents.
FR398461A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Flexible Reinforced Concrete Railway Crossing
Assignee: WILHELM PLESSING
•
Filing: 1909-01-13
•
Granted: 1909-06-05
•
Expires: 1929-01-13
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Plessing
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
E; E01; E01B; E01B3/00; E01B3/28; E01B3/32
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.