US2438342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste liquor aerator
Assignee: Individual
•
Filing: 1944-09-06
•
Granted: 1948-03-23
•
Expires: 1964-09-06
Abstract
No abstract record available.
Inventors
- 👤 Edward B Mallory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:26
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US630506A
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DE197071C
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US1797147A
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US1959554A
Cited
US1994887A
Cited
US1937434A
Cited
US1985854A
Cited
US2040941A
Cited
US2027370A
Cited
US2144385A
Cited
US2221346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-23 | 1951-09-22 | 1952-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-23 | 1955-09-22 | 1956-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-23 | 1959-09-22 | 1960-03-23 | $7700.00 | Window Closed / Lapsed |