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US3518635A Expired / Lapsed US ⏱️ 0.0 years remaining

Digital memory apparatus

Assignee: Bunker Ramo Corp
•
Filing: 1967-08-22
•
Granted: 1970-06-30
•
Expires: 1987-08-22
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Abstract

No abstract record available.

Inventors

  • 👤 Robert H Cole
  • 👤 Samuel Nissim
  • 👤 George V Podraza
  • 👤 Robert Feuer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:51
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/353; H03K3/356; H03K3/356017; H03K3/356052; H03K3/35606; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/402; G11C11/4023

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3218613A Cited
US3355721A Cited
US3440444A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-06-29 1973-12-29 1974-06-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-06-29 1977-12-29 1978-06-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-06-29 1981-12-29 1982-06-30 $7700.00 Window Closed / Lapsed

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