Patent US4412149A successfully refreshed from Google Patents.
Patent US2396896A successfully refreshed from Google Patents.
Patent FR348973A successfully refreshed from Google Patents.
FR348973A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Centrifugal siren with rotating boxes
Assignee: LUIGI GUGLIELMO MOLTENI
•
Filing: 1904-12-03
•
Granted: 1905-05-05
•
Expires: 1924-12-03
Abstract
No abstract record available.
Inventors
- 👤 Luigi Guglielmo Molteni
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 07:51
CPC Classifications
G; G10; G10K; G10K7/00
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.