US2417544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: MARION P MCCAFFREY
•
Filing: 1944-10-16
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Granted: 1947-03-18
•
Expires: 1964-10-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:10
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3414
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1614787A
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US1527251A
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US1536282A
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US1742494A
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US2260539A
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US2255398A
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US2301102A
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US2349335A
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US2395622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |