US2885703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced sponge cleaning device
Assignee: WILLIAM E KELSEY
•
Filing: 1954-04-29
•
Granted: 1959-05-12
•
Expires: 1974-04-29
Abstract
No abstract record available.
Inventors
- 👤 Harold W Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; A47K; A47K7/00; A47K7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2113452A
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US2121384A
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US2358673A
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US2411842A
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US2644974A
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US2567951A
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US2650158A
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FR1070031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |