← Back to Patent Explorer
US974464A Expired / Lapsed US ⏱️ 0.0 years remaining

Polychrome screen and process of making the same.

Assignee: Individual
•
Filing: 1907-09-09
•
Granted: 1910-11-01
•
Expires: 1927-09-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Charles L A Brasseur

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:32
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007; Y; Y10; Y10S; Y10S430/00; Y10S430/147

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) 1913-10-31 1914-05-02 1914-11-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1917-10-31 1918-05-02 1918-11-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1921-10-31 1922-05-02 1922-11-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag