Patent US3385568A successfully refreshed from Google Patents.
US3385568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beater structure
Assignee: Individual
•
Filing: 1966-11-16
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Granted: 1968-05-28
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Expires: 1986-11-16
Abstract
No abstract record available.
Inventors
- 👤 Donald J Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:04
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/071; A; A23; A23G; A23G9/00; A23G9/04; A23G9/14; A23G9/16; A23G9/163
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |