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Patent US2870474A successfully refreshed from Google Patents.
US2870474A
Expired / Lapsed
US
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Protected mop head and method of assembling it
Assignee: W E KAUTENBERG CO
•
Filing: 1956-08-10
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Granted: 1959-01-27
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Expires: 1976-08-10
Abstract
No abstract record available.
Inventors
- 👤 William E Kautenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:07
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2214691A
Cited
US2304961A
Cited
US2626415A
Cited
DE823188C
Cited
US2738534A
Cited
US2743471A
Cited
US2696015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |