Patent US2743003A successfully refreshed from Google Patents.
US2743003A
Expired / Lapsed
US
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Conveyor chain for use in heat treating furnaces
Assignee: Individual
•
Filing: 1953-01-02
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Granted: 1956-04-24
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Expires: 1973-01-02
Abstract
No abstract record available.
Inventors
- 👤 James V Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:48
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/065; B65G17/30; B65G17/38; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1971553A
Cited
US1825107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |