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US1795509A Expired / Lapsed US ⏱️ 0.0 years remaining

robertson

Assignee: —
•
Filing: —
•
Granted: 1931-03-10
•
Expires: 1948-03-10
📄 Original PDF 🌐 Google Patents

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 06:18
CPC Classifications
G; G07; G07G; G07G1/00; G07G1/0036; B; B41; B41J; B41J1/00; B41J1/22; B41J1/32; B41J1/44; B41J1/46; B41J1/48

Claims Analysis

Total Claims: 0
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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) 1934-03-09 1934-09-08 1935-03-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1938-03-09 1938-09-08 1939-03-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1942-03-09 1942-09-08 1943-03-10 $7700.00 Window Closed / Lapsed

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