US3310243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dishwashing machine
Assignee: Design and Manufacturing Corp
•
Filing: 1965-01-06
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Granted: 1967-03-21
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Expires: 1985-01-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Duncan
- 👤 Charles N Perin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:21
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/4214; A47L15/4225; A47L15/4227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A DISHWASHING MACHINE A VAT HAVING A SUMP AND AT LEAST ONE RACK FOR TABLEWARE, A FIRST PUMP FOR EXHAUSTING WATER FROM SAID SUMP, A ROTATING SPRAY ARM LOCATED BENEATH SAID RACK, A SECOND PUMP FOR SUPPLYING WATER TO SAID ROTATING SPRAY ARM, INLET MEANS FOR WATER TO SAID FIRST PUMP, SAID INLET MEANS HAVING A RESTRICTED CROSS SECTIONAL DIMENSION SUCH THAT SOLID MATERIALS TOO LARGE TO BE EXHAUSTED WITH SAID WATER BY SAID FIRST PUMP CANNOT ENTER SAID FIRST PUMP, ENTRANCE MEANS FOR SAID SECOND PUMP AND A MACERATING MEANS IN CONNECTION WITH SAID ENTRANCE MEANS AND ACTING TO REDUCE SOLID MATERIALS IN THE WATER IN SAID VAT TO A SIZE CAPABLE OF ENTERING SAID INLET MEANS.
Claim 2
Dependent Claim
119 words
IN A DISHWASHING MACHINE A VAT HAVING A SUMP AND AT LEAST ONE RACK FOR TABLEWARE, A FIRST PUMP FOR EXHAUSTING WATER FROM SAID SUMP, A ROTATING SPRAY ARM LOCATED BENEATH SAID RACK, A SECOND PUMP FOR SUPPLYING WATER TO SAID ROTATING SPRAY ARM, INLET MEANS FOR WATER TO SAID FIRST PUMP, SAID INLET MEANS HAVING A RESTRICTED CROSS SECTIONAL DIMENSION SUCH THAT SOLID MATERIALS TOO LARGE TO BE EXHAUSTED WITH SAID WATER BY SAID FIRST PUMP CANNOT ENTER SAID FIRST PUMP, ENTRANCE MEANS FOR SAID SECOND PUMP AND A MACERATING MEANS IN CONNECTION WITH SAID ENTRANCE MEANS AND ACTING TO REDUCE SOLID MATERIALS IN THE WATER IN SAID VAT TO A SIZE CAPABLE OF ENTERING SAID INLET MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |