← Back to Patent Explorer
US2713375A Expired / Lapsed US ⏱️ 0.0 years remaining

Fin straightening devices

Assignee: Air and Liquid Systems Corp
•
Filing: 1950-10-12
•
Granted: 1955-07-19
•
Expires: 1970-10-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Robert M Stikeleather

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 07:53
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/26

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1958-07-18 1959-01-17 1959-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1962-07-18 1963-01-17 1963-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1966-07-18 1967-01-17 1967-07-19 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag