US3280603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-drum washing machine with sliding doors
Assignee: Gebr. Poensgen GmbH
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Filing: 1964-12-14
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Granted: 1966-10-25
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Schwamm Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:42
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/02; D06F37/04; D06F37/10; D06F37/26; D06F37/28; D06F37/30; D06F37/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A DOUBLE-DRUM WASHING MACHINE COMPRISING AN OUTER STATIONARY DRUM, A ROTATABLY DRIVEN INNER DRUM ARRANGED IN SAID OUTER DRUM, A SLIDING DOOR ON SAID OUTER DRUM AND AT LEAST ONE SLIDING DOOR ON THE INNER DRUM, COACTING MEANS ON THE SLIDING DOOR OF THE OUTER DRUM AND THE INNER DRUM TO FORM A COUPLING BETWEEN AND COACTING MEANS BETWEEN THE SLIDING DOOR OF THE INNER DRUM AND THE OUTER DRUM AND OPERABLE UPON ROTATION OF THE INNER DRUM FOR OPENING AND CLOSING SAID INNER DRUM SLIDING DOOR, THE OPENING OF THE SLIDING DOORS BEING EFFECTED BY TWO SUCCESSIVE ROTATIONS OF THE INNER DRUM IN OPPOSITE DIRECTIONS.
Claim 2
Dependent Claim
106 words
A DOUBLE-DRUM WASHING MACHINE COMPRISING AN OUTER STATIONARY DRUM, A ROTATABLY DRIVEN INNER DRUM ARRANGED IN SAID OUTER DRUM, A SLIDING DOOR ON SAID OUTER DRUM AND AT LEAST ONE SLIDING DOOR ON THE INNER DRUM, COACTING MEANS ON THE SLIDING DOOR OF THE OUTER DRUM AND THE INNER DRUM TO FORM A COUPLING BETWEEN AND COACTING MEANS BETWEEN THE SLIDING DOOR OF THE INNER DRUM AND THE OUTER DRUM AND OPERABLE UPON ROTATION OF THE INNER DRUM FOR OPENING AND CLOSING SAID INNER DRUM SLIDING DOOR, THE OPENING OF THE SLIDING DOORS BEING EFFECTED BY TWO SUCCESSIVE ROTATIONS OF THE INNER DRUM IN OPPOSITE DIRECTIONS.
References Cited (Backward Citations)
US2033630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |