US2528232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Case LLC
•
Filing: 1945-04-28
•
Granted: 1950-10-31
•
Expires: 1965-04-28
Abstract
No abstract record available.
Inventors
- 👤 Norman R Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:19
CPC Classifications
A; A01; A01F; A01F12/00; A01F12/10; A01F12/14; A01F12/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US114974A
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US447032A
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US507771A
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US552275A
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US826988A
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US1176257A
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US2286545A
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US2305159A
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US2383911A
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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) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |