US2474205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic grain elevator
Assignee: International Motors LLC
•
Filing: 1945-11-14
•
Granted: 1949-06-21
•
Expires: 1965-11-14
Abstract
No abstract record available.
Inventors
- 👤 Albert B Welty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:05
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US213709A
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US304982A
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US813073A
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US851054A
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US1029571A
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US1256336A
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US1385870A
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US1818367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |