FR716453A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process of protection against scale deposits and corrosion in boilers, boilers, etc.
Assignee: Francis Dormoy
•
Filing: 1931-05-02
•
Granted: 1931-12-21
•
Expires: 1951-05-02
Abstract
No abstract record available.
Inventors
- 👤 Francis Dormoy
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 12:05
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/48; C02F2303/00; C02F2303/22
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.