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US3419128A
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US
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Conveyor system
Assignee: ROY F LEONARD
•
Filing: 1966-10-07
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Granted: 1968-12-31
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Expires: 1986-10-07
Abstract
No abstract record available.
Inventors
- 👤 Roy F Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:41
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/34; B65G47/46; B65G47/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2318221A
Cited
US2219055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |