Patent US761573A successfully refreshed from Google Patents.
Patent US269148A successfully refreshed from Google Patents.
← Back to Patent Explorer
US269148A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve for engines

Assignee: —
•
Filing: —
•
Granted: 1882-12-12
•
Expires: 1899-12-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 07:17
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/072; F16K11/074; F16K11/0743; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/877; Y10T137/87708; Y10T137/87732; Y10T137/87917; Y10T137/87981

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

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1885-12-11 1886-06-12 1886-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1889-12-11 1890-06-12 1890-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1893-12-11 1894-06-12 1894-12-12 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag