US2522840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling motion
Assignee: MW Kellogg Co
•
Filing: 1947-08-30
•
Granted: 1950-09-19
•
Expires: 1967-08-30
Abstract
No abstract record available.
Inventors
- 👤 Rinne John
- 👤 Robert G Mallard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:01
CPC Classifications
D; D03; D03D; D03D51/00; D03D51/18; D03D51/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US853199A
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US1661337A
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US1590564A
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US1795841A
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US2009864A
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US2009893A
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US2427725A
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US2443401A
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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) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |