US2541045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material moving apparatus
Assignee: Individual
•
Filing: 1944-05-15
•
Granted: 1951-02-13
•
Expires: 1964-05-15
Abstract
No abstract record available.
Inventors
- 👤 Ferwerda Ray
- 👤 Ferwerda Koop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/283; E02F3/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1088131A
Cited
US105883A
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US912611A
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US1021710A
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US1409715A
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US1430542A
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US1504427A
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US1440910A
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US1546874A
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US1792772A
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US1944351A
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US2100445A
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US2160596A
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US2112466A
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US2348796A
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US2308590A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |