Patent US2704148A successfully refreshed from Google Patents.
US2704148A
Expired / Lapsed
US
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Conveyor systems
Assignee: Geo W King Ltd
•
Filing: 1951-12-13
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Granted: 1955-03-15
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Expires: 1971-12-13
Abstract
No abstract record available.
Inventors
- 👤 Burrows Arthur Thomas Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:47
CPC Classifications
B; B65; B65G; B65G67/00; B65G67/60; B65G67/603
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1313928A
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US1525950A
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DE487518C
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US2108869A
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US2216685A
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US2331613A
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US2549370A
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AU554131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |