Patent US4310663A successfully refreshed from Google Patents.
Patent US3451758A successfully refreshed from Google Patents.
US3451758A
Expired / Lapsed
US
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Trapezoidal scouring pad of non-woven fibrous material
Assignee: Procter and Gamble Co
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Filing: 1966-05-11
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Granted: 1969-06-24
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Expires: 1986-05-11
Abstract
No abstract record available.
Inventors
- 👤 Herbert K Mcclain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:14
CPC Classifications
A; A47; A47L; A47L17/00; A47L17/04; A47L17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1478112A
Cited
CH147880A
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US2497206A
Cited
US2521984A
Cited
DE816188C
Cited
FR1081010A
Cited
FR1115660A
Cited
US3054127A
Cited
US3175331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |