US2643602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure protected silolike container for preserving farm crops
Assignee: AO Smith Corp
•
Filing: 1949-07-02
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Granted: 1953-06-30
•
Expires: 1969-07-02
Abstract
No abstract record available.
Inventors
- 👤 Wesley G Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
A; A01; A01F; A01F25/00; A01F25/16; B; B65; B65D; B65D90/00; B65D90/22; B65D90/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1275558A
Cited
US1690072A
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US1695076A
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US2040798A
Cited
US2286797A
Cited
US2305423A
Cited
US2551217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |