Patent US1487038A successfully refreshed from Google Patents.
AT19885B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Control device for centrifugal fans and pumps.
Assignee: Elling Compressor Co As
•
Filing: 1903-09-11
•
Granted: 1905-04-25
•
Expires: 1923-09-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
AT
Data Source
google_patents
Last Synchronized
2026-10-23 22:31
CPC Classifications
—
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.