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US3521479A Expired / Lapsed US ⏱️ 0.0 years remaining

Throttling conversion meter

Assignee: Monsanto Co
•
Filing: 1967-04-06
•
Granted: 1970-07-21
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Expires: 1987-04-06
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Abstract

No abstract record available.

Inventors

  • 👤 Don E Carter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 06:34
CPC Classifications
G; G01; G01N; G01N25/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2926521A Cited
US3221541A Cited
US3264862A Cited
US3354052A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-07-20 1974-01-19 1974-07-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-07-20 1978-01-19 1978-07-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-07-20 1982-01-19 1982-07-21 $7700.00 Window Closed / Lapsed

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