Patent US2622341A successfully refreshed from Google Patents.
US2622341A
Expired / Lapsed
US
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Pneumatic grain conveyer and drier
Assignee: Individual
•
Filing: 1948-09-25
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Granted: 1952-12-23
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Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 James F Finnegan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:09
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/10; F26B17/107; B; B65; B65G; B65G53/00; B65G2812/00; B65G2812/16; B65G2812/1608; B65G2812/1675; B65G2812/1683
Claims Analysis
Total Claims: 0
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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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |