US2429430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax-oil separation
Assignee: Individual
•
Filing: 1944-12-02
•
Granted: 1947-10-21
•
Expires: 1964-12-02
Abstract
No abstract record available.
Inventors
- 👤 Schutte August Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:22
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/02; C10G73/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1988712A
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US2140485A
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US2263535A
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US2164013A
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US2205096A
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US2223939A
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US2168140A
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US2234916A
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US2296456A
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US2342798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |