US2714938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the de-aeration of viscous liquids
Assignee: Akzo Nobel UK PLC
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Filing: 1952-12-09
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Granted: 1955-08-09
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Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 John O Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:11
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/10; D01D1/103; B; B01; B01D; B01D19/00; B01D19/0021; B01D19/0042; Y; Y10; Y10S; Y10S159/00; Y10S159/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US784748A
Cited
US1513354A
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US1556098A
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US1620826A
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US1836338A
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US2354674A
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US2355057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |