Patent US3432308A successfully refreshed from Google Patents.
US3432308A
Expired / Lapsed
US
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Concentration process
Assignee: Struthers Scient & Intern Corp
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Filing: 1968-04-03
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Granted: 1969-03-11
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Expires: 1988-04-03
Abstract
No abstract record available.
Inventors
- 👤 Richard G Reimus
- 👤 Anthony Saporito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:23
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/12; A23B; A23B2/00; A23B2/90; A23B2/905; A23F; A23F3/00; A23F3/16; A23F3/22; A23F3/24; A23F5/00; A23F5/24; A23F5/28; A23F5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |