Patent US2690661A successfully refreshed from Google Patents.
US2690661A
Expired / Lapsed
US
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Scrubbing and polishing device and fabric therefor
Assignee: Individual
•
Filing: 1952-01-25
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Granted: 1954-10-05
•
Expires: 1972-01-25
Abstract
No abstract record available.
Inventors
- 👤 Walter S Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:11
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; A47L13/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1802337A
Cited
US1711830A
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US2123805A
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US2396525A
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US2409660A
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US2448928A
Cited
US2600143A
Cited
US2531718A
Cited
US9155385B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |