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Patent US3233837A successfully refreshed from Google Patents.
US3233837A
Expired / Lapsed
US
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Grinder-blenders
Assignee: HI SPEED BLENDING AND MIXING C
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Filing: 1963-05-13
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Granted: 1966-02-08
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Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Haber Norman
- 👤 Lee Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:06
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/30; B01F35/32; B01F35/324; B02; B02C; B02C13/00
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |