US2342972A
Expired / Lapsed
US
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Apparatus for aerating liquids
Assignee: JEAN BURNS
•
Filing: 1939-10-02
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Granted: 1944-02-29
•
Expires: 1959-10-02
Abstract
No abstract record available.
Inventors
- 👤 Burns Bruce
- 👤 Kurt H Roy
- 👤 Glen M Larson
- 👤 Howard B Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:25
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/10; A01; A01J; A01J13/00; Y; Y10; Y10S; Y10S261/00; Y10S261/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-02-28 | 1947-08-30 | 1948-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-28 | 1951-08-30 | 1952-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-28 | 1955-08-30 | 1956-02-29 | $7700.00 | Window Closed / Lapsed |