Patent US2670488A successfully refreshed from Google Patents.
US2670488A
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US
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Foldable mop
Assignee: Individual
•
Filing: 1952-04-15
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Granted: 1954-03-02
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Expires: 1972-04-15
Abstract
No abstract record available.
Inventors
- 👤 William H Richards
- 👤 William F Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:35
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/14; A47L13/146; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32271
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA463790A
Cited
CA466474A
Cited
US911791A
Cited
US1344256A
Cited
US2310011A
Cited
US2637059A
Cited
US2643407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |