Patent US3056997A successfully refreshed from Google Patents.
US3056997A
Expired / Lapsed
US
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Dishwashing brush
Assignee: BLAKE CUMMINGS Manufacturing CO
•
Filing: 1960-03-23
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Granted: 1962-10-09
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Expires: 1980-03-23
Abstract
No abstract record available.
Inventors
- 👤 John W Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
A; A47; A47L; A47L17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1759216A
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US1817096A
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US2143712A
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US2314394A
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FR937132A
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US2567764A
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US2565104A
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US2726417A
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US2718023A
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US2932840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |