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US2885149A Expired / Lapsed US ⏱️ 0.0 years remaining

Transistor full adder

Assignee: International Business Machines Corp
•
Filing: 1956-09-04
•
Granted: 1959-05-05
•
Expires: 1976-09-04
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Abstract

No abstract record available.

Inventors

  • 👤 Genung L Clapper

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 02:51
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/501; G06F7/5013; G06F2207/00; G06F2207/38; G06F2207/48; G06F2207/4802; G06F2207/4818

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2689683A Cited
US2670445A Cited
US2628310A Cited
US2772370A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-05-04 1962-11-03 1963-05-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-05-04 1966-11-03 1967-05-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-05-04 1970-11-03 1971-05-05 $7700.00 Window Closed / Lapsed

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