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US3128615A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic washing machine having a two-speed electric motor

Assignee: Whirlpool Corp
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Filing: 1955-03-28
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Granted: 1964-04-14
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Expires: 1975-03-28
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Abstract

No abstract record available.

Inventors

  • 👤 William E Mahaffay

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 21:29
CPC Classifications
D; D06; D06F; D06F13/00; D06F13/02; D06F34/00; D06F34/08

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 142 words
IN A WASHING MACHINE OF THE TYPE HAVING A ROTATABLE RECEPTACLE AND AN AGITATOR THEREIN FOR WASHING AND CENTRIFUGING CLOTHES, DRIVE MEANS INCLUDING A TWO-SPEED ELECTRIC MOTOR FOR DRIVING SAID AGITATOR AT EITHER A FIRST AGITATING SPEED SUITABLE FOR ORDINARY FABRICS OR A SECOND SLOWER AGITATING SPEED SUITABLE FOR DELICATE FABRICS, AND FOR ROTATING SAID RECEPTACLE AT EITHER A FIRST CENTRIFUGING SPEED SUITABLE FOR ORDINARY FABRICS OR A SECOND SLOWER CENTRIFUGING SPEED SUITABLE FOR DELICATE FABRICS, CONTROL MECHANISM INCLUDING PRESETTABLE SEQUENTIAL CONTROL MEANS CONTROLLING SAID DRIVE MEANS AND HAVING SEPARATE ORDINARY FABRIC AND DELICATE FABRIC PROGRAMMING SCHEDULES AND INCLUDING PRESETTABLE MEANS FOR SELECTIVELY PRESETTING THE SPEED OF SAID MOTOR FOR EFFECTING A SEQUENTIAL OPERATION OF SAID AGITATOR AND RECEPTACLE AT THEIR RESPECTIVE FIRST SPEEDS DURING SAID ORDINARY FABRIC PROGRAMMING SCHEDULE OR AT SAID SECOND SLOWER SPEEDS DURING SAID DELICATE FABRIC PROGRAMMING SCHEDULE.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-04-14 1967-10-14 1968-04-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-04-14 1971-10-14 1972-04-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-04-14 1975-10-14 1976-04-14 $7700.00 Window Closed / Lapsed

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