Patent US2507548A successfully refreshed from Google Patents.
US2507548A
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US
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Mechanical shoveling machine
Assignee: Goodman Manufacturing Co LP
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Filing: 1947-12-05
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Granted: 1950-05-16
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Expires: 1967-12-05
Abstract
No abstract record available.
Inventors
- 👤 Mather W Sherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:23
CPC Classifications
E; E02; E02F; E02F9/00; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/348; E02F3/3486; E02F9/08; E02F9/0808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1234115A
Cited
US2231484A
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US2255398A
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US2268570A
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US2282613A
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US2423193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |