US2633974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible conveyer system
Assignee: Hewitt Robins Inc
•
Filing: 1950-11-17
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Granted: 1953-04-07
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Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 Reuben U Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:02
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/94; B65G47/95; B65G21/00; B65G21/10; B65G21/14; B65G21/16; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE151639C
Cited
US1585694A
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DE538364C
Cited
US1785594A
Cited
US1920500A
Cited
US2525555A
Cited
GB628363A
Cited
US2543368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |