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US2321211A Expired / Lapsed US ⏱️ 0.0 years remaining

Auxiliary fuel feeding device for internal combustion engines

Assignee: AUTOMOTIVE ECONOMY Corp
•
Filing: 1940-07-27
•
Granted: 1943-06-08
•
Expires: 1960-07-27
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Abstract

No abstract record available.

Inventors

  • 👤 Albin V Johnson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 05:24
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/14; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

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) 1946-06-07 1946-12-07 1947-06-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1950-06-07 1950-12-07 1951-06-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1954-06-07 1954-12-07 1955-06-08 $7700.00 Window Closed / Lapsed

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