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US1942872A Expired / Lapsed US ⏱️ 0.0 years remaining

Developing gelatin reliefs and making metal casts therefrom

Assignee: Eastman Kodak Co
•
Filing: 1932-05-16
•
Granted: 1934-01-09
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Expires: 1952-05-16
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Abstract

No abstract record available.

Inventors

  • 👤 Murray Alexander

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:00
CPC Classifications
B; B41; B41C; B41C3/00; G; G03; G03F; G03F7/00; G03F7/0017; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31844

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1937-01-08 1937-07-10 1938-01-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1941-01-08 1941-07-10 1942-01-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1945-01-08 1945-07-10 1946-01-09 $7700.00 Window Closed / Lapsed

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