Patent US3381943A successfully refreshed from Google Patents.
US3381943A
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US
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Method and apparatus for mixing liquid and solid materials
Assignee: TRUMBULL ASPHALT Co
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Filing: 1967-01-17
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Granted: 1968-05-07
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Expires: 1987-01-17
Abstract
No abstract record available.
Inventors
- 👤 Adason M Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:38
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/105; B; B01; B01F; B01F25/00; B01F25/60; B01F25/62; B01F33/00; B01F33/80; B01F33/82; B01F33/821; B01F33/8212
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |