Patent US3204831A successfully refreshed from Google Patents.
US3204831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laundry agent dispensing device
Assignee: Whirlpool Corp
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Filing: 1963-04-04
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Granted: 1965-09-07
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Expires: 1983-04-04
Abstract
No abstract record available.
Inventors
- 👤 Vernon A Butler
- 👤 Charles H Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:36
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/02; A; A47; A47L; A47L15/00; A47L15/42; A47L15/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A DISPENSER COMPRISING INNER AND OUTER CUP-SHAPED HOUSING NESTED TOGETHER, SAID HOUSINGS BEING SPACED FROM EACH OTHER AND HAVING SPACED APART UPRIGHT SIDE WALLS AND OPPOSITELY SLOPING SPACED APART LOWER WALLS TO FORM A SWIRL CHAMBER BETWEEN THE HOUSINGS AND NON-REGISTERING OUTLET OPENINGS AT THE LOWER END OF EACH CORRESPONDING LOWER WALL, AND MEANS FOR INJECTING A CARRIER STREAM OF LIQUID INTO SAID SWIRL CHAMBER, WHEREBY ADDITIVE CHARGED INTO SAID INNER HOUSING WILL BE WASHED INTO THE OUTLET OPENING OF THE OUTER HOUSING FOR DISCHARGE TO A POINT OF UTILIZATION.
Claim 2
Dependent Claim
90 words
A DISPENSER COMPRISING INNER AND OUTER CUP-SHAPED HOUSING NESTED TOGETHER, SAID HOUSINGS BEING SPACED FROM EACH OTHER AND HAVING SPACED APART UPRIGHT SIDE WALLS AND OPPOSITELY SLOPING SPACED APART LOWER WALLS TO FORM A SWIRL CHAMBER BETWEEN THE HOUSINGS AND NON-REGISTERING OUTLET OPENINGS AT THE LOWER END OF EACH CORRESPONDING LOWER WALL, AND MEANS FOR INJECTING A CARRIER STREAM OF LIQUID INTO SAID SWIRL CHAMBER, WHEREBY ADDITIVE CHARGED INTO SAID INNER HOUSING WILL BE WASHED INTO THE OUTLET OPENING OF THE OUTER HOUSING FOR DISCHARGE TO A POINT OF UTILIZATION.
References Cited (Backward Citations)
US2038260A
Cited
US2062704A
Cited
US2090755A
Cited
US2643537A
Cited
FR1116987A
Cited
US2802599A
Cited
US2927600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |