Patent US769331A successfully refreshed from Google Patents.
Patent AT53868B successfully refreshed from Google Patents.
AT53868B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Sealing device for reversible machines with pistons that can be moved radially in the rotating piston drum.
Assignee: Giulio Silvestri
•
Filing: 1911-09-30
•
Granted: 1912-06-10
•
Expires: 1931-09-30
Abstract
No abstract record available.
Inventors
- 👤 Giulio Silvestri
- 👤 Heinrich Dr Barasch
- 👤 Julius Schwarz
- 👤 Anton Findenigg
Bibliographic Details
Application Number
—
Jurisdiction
AT
Data Source
google_patents
Last Synchronized
2026-11-02 15:45
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.