Patent US3450356A successfully refreshed from Google Patents.
US3450356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitator
Assignee: UNION PROCESS INTERNATIONAL Inc AN OH CORP
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Filing: 1967-02-17
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Granted: 1969-06-17
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Expires: 1987-02-17
Abstract
No abstract record available.
Inventors
- 👤 Andrew Szegvari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:44
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/072; B01F27/0727
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) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |