FR488799A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Unsinkable portable device for walking on water
Assignee: Individual
•
Filing: 1916-02-21
•
Granted: 1918-11-14
•
Expires: 1936-02-21
Abstract
No abstract record available.
Inventors
- 👤 Luigi Risso
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 21:37
CPC Classifications
B; B63; B63H; B63H5/00; B63H5/02; B63B; B63B34/00; B63B34/50; B63B34/56; B63H16/00; B63H16/08
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.