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US2855723A Expired / Lapsed US ⏱️ 0.0 years remaining

Mechanical memory device

Assignee: Margon Corp
•
Filing: 1956-02-15
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Granted: 1958-10-14
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Expires: 1976-02-15
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Abstract

No abstract record available.

Inventors

  • 👤 Bashover Albert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 21:32
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/36; A63H17/395

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2571554A Cited
US2512166A Cited
US2589333A Cited
US2506036A Cited
US2604727A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-10-13 1962-04-14 1962-10-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-10-13 1966-04-14 1966-10-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-10-13 1970-04-14 1970-10-14 $7700.00 Window Closed / Lapsed

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