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US2986967A Expired / Lapsed US ⏱️ 0.0 years remaining

Projection apparatus

Assignee: Eastman Kodak Co
•
Filing: 1956-06-26
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Granted: 1961-06-06
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Expires: 1976-06-26
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Abstract

No abstract record available.

Inventors

  • 👤 Donald J Albert
  • 👤 Robert N Ferry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 08:34
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/46; G03B27/462

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE550974C Cited
US2132411A Cited
US2172330A Cited
US2366267A Cited
US2431662A Cited
US2615365A Cited
US2703280A Cited
US2622475A Cited
US2705436A Cited
US2753757A Cited
US2748651A Cited
US2741960A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-06-05 1964-12-05 1965-06-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-06-05 1968-12-05 1969-06-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-06-05 1972-12-05 1973-06-06 $7700.00 Window Closed / Lapsed

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