Patent US6373303B2 successfully refreshed from Google Patents.
Patent US3128615A successfully refreshed from Google Patents.
US3128615A
Expired / Lapsed
US
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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
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.
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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) | 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 |