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US3119244A Expired / Lapsed US ⏱️ 0.0 years remaining

Refrigerant treating element and method of refrigerant treatment

Assignee: Individual
•
Filing: 1961-05-22
•
Granted: 1964-01-28
•
Expires: 1981-05-22
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Abstract

No abstract record available.

Inventors

  • 👤 Emil L Fabian

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 13:17
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/003

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US950491A Cited
US1677804A Cited
US1809833A Cited
US1914829A Cited
US1960040A Cited
GB409844A Cited
US2225990A Cited
US2469842A Cited
US2435510A Cited
US2509787A Cited
US2537720A Cited
US2705405A Cited
US2835114A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-01-27 1967-07-29 1968-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-01-27 1971-07-29 1972-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-01-27 1975-07-29 1976-01-28 $7700.00 Window Closed / Lapsed

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