US2634673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for aerating and drying granular materials
Assignee: Individual
•
Filing: 1950-01-14
•
Granted: 1953-04-14
•
Expires: 1970-01-14
Abstract
No abstract record available.
Inventors
- 👤 Maho Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:33
CPC Classifications
F; F26; F26B; F26B9/00; F26B9/10; F26B9/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1322428A
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US839689A
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US1693856A
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US1693855A
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US1929084A
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US2027268A
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US2016608A
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US2206119A
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US2299299A
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US2370886A
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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) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |