US2858122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveying apparatus
Assignee: York Engineering and Construction Co
•
Filing: 1955-03-03
•
Granted: 1958-10-28
•
Expires: 1975-03-03
Abstract
No abstract record available.
Inventors
- 👤 Macgregor Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:19
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/201; F27B9/208; B; B65; B65G; B65G25/00; B65G25/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE313819C
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US1400367A
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GB303830A
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US1824439A
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US1965868A
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US1897911A
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US1937395A
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US2296806A
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US2542878A
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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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |