US2597941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling movement of pipe or the like along a roller conveyer
Assignee: United States Steel Corp
•
Filing: 1949-02-23
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Granted: 1952-05-27
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Expires: 1969-02-23
Abstract
No abstract record available.
Inventors
- 👤 Louis W Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/88; B65G47/8807; B65G47/883; B65G47/8846; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1492; B65G2201/00; B65G2201/02; B65G2201/0214; B65G2201/0217; B65G2205/00; B65G2205/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1239879A
Cited
US1406709A
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US1448790A
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US1668634A
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US2150995A
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US2366256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |