US2431119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vegetable protein-polyphosphate urea solution and process of preparing same
Assignee: Hall Labs LLC
•
Filing: 1944-04-08
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Granted: 1947-11-18
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Expires: 1964-04-08
Abstract
No abstract record available.
Inventors
- 👤 Artemy A Horvath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/32; A61B; A61B42/00; D; D21; D21H; D21H19/00; D21H19/10; A61F; A61F13/00; A61F2013/00089; A61F2013/00157; A61F2013/00217; A61F2013/00221; Y; Y10; Y10S; Y10S424/00; Y10S424/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2182357A
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US2241868A
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US2215137A
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US2167202A
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US2204535A
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US2322565A
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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) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |