← Back to Patent Explorer
US2592881A Expired / Lapsed US ⏱️ 0.0 years remaining

Dustproof watch crown

Assignee: FEURER BROS Inc
•
Filing: 1950-05-05
•
Granted: 1952-04-15
•
Expires: 1970-05-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Feurer Robert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 18:46
CPC Classifications
G; G04; G04B; G04B37/00; G04B37/08; G04B37/10

Claims Analysis

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

References Cited (Backward Citations)

US343576A Cited
GB274788A Cited
CH160210A Cited
CH194226A Cited
US2237860A Cited
CH229461A Cited
US2482583A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-04-15 1955-10-15 1956-04-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-04-15 1959-10-15 1960-04-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-04-15 1963-10-15 1964-04-15 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag