Patent US3000521A successfully refreshed from Google Patents.
US3000521A
Expired / Lapsed
US
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Conveyor unit
Assignee: Godfrey Conveyor Co Inc
•
Filing: 1958-10-10
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Granted: 1961-09-19
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Expires: 1978-10-10
Abstract
No abstract record available.
Inventors
- 👤 Sherrill S Deputy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:55
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/36; B60P1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1837276A
Cited
US2107682A
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US2507252A
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US2718296A
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US2577926A
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US2633230A
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US2598470A
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US2829018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |