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US2776558A Expired / Lapsed US ⏱️ 0.0 years remaining

Washing machines having magnetically actuated diaphragms

Assignee: Individual
•
Filing: 1953-08-06
•
Granted: 1957-01-08
•
Expires: 1973-08-06
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Abstract

No abstract record available.

Inventors

  • 👤 Vang Alfred

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 18:42
CPC Classifications
D; D06; D06F; D06F19/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE114930C Cited
US654647A Cited
US912107A Cited
US1631630A Cited
US1718115A Cited
FR691392A Cited
US1908033A Cited
US1909232A Cited
US2037568A Cited
US2223348A Cited
US2203479A Cited
US2699592A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-01-08 1960-07-09 1961-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-01-08 1964-07-09 1965-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-01-08 1968-07-09 1969-01-08 $7700.00 Window Closed / Lapsed

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