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Patent US3536304A successfully refreshed from Google Patents.
US3536304A
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US
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Mixing apparatus
Assignee: BERNHARD V FEJMERT
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Filing: 1968-09-11
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Granted: 1970-10-27
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Expires: 1988-09-11
Abstract
No abstract record available.
Inventors
- 👤 Bernhard V Fejmert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:06
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/16; B28C5/163
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |