Patent US5086905A successfully refreshed from Google Patents.
US2812596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mud scoop
Assignee: Individual
•
Filing: 1954-03-29
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Granted: 1957-11-12
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Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Walter W Schofield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:52
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/46; E02F3/58; E02F3/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE515591A
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US717013A
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US1096137A
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US1399382A
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US1397751A
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AU1244428A
Cited
US2053970A
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AU2127035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |