US2594342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Troughed belt conveyer
Assignee: Individual
•
Filing: 1945-02-05
•
Granted: 1952-04-29
•
Expires: 1965-02-05
Abstract
No abstract record available.
Inventors
- 👤 Don C Pettyjohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:22
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/02; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312891A
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US443488A
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US812374A
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US802047A
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US1124722A
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US1155340A
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US1279579A
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US1532807A
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US1626492A
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US2150610A
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US2340509A
Cited
US2391173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |