US3520868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for concentrating protein by extraction with a solvent
Assignee: Beloit Corp
•
Filing: 1969-04-14
•
Granted: 1970-07-21
•
Expires: 1989-04-14
Abstract
No abstract record available.
Inventors
- 👤 Robert M Henderson
- 👤 William F Habermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:47
CPC Classifications
A; A23; A23J; A23J1/00; Y; Y10; Y10S; Y10S530/00; Y10S530/855; Y10S530/857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2567179A
Cited
US2559257A
Cited
US3076708A
Cited
US3207744A
Cited
US3099562A
Cited
US3252962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |