US3031564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dishwashing machine
Assignee: Whirlpool Corp
•
Filing: 1956-05-31
•
Granted: 1962-04-24
•
Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Edward C Levit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:38
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/14; A47L15/18; A47L15/20; A47L15/02; A47L15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1637376A
Cited
US2022637A
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US2422022A
Cited
US2418366A
Cited
US2432291A
Cited
US2514528A
Cited
US2634739A
Cited
US2675459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |