US3173665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Individual
•
Filing: 1963-05-10
•
Granted: 1965-03-16
•
Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 William R Hall
- 👤 Leonard O Cederwall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:48
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/18; B28C5/1825; B28C5/1887
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
IN A MIXING APPARATUS FOR MIXING SUBSTANCES COMPRISING, A CYLINDRICAL MIXING DRUM HAVING A CONSTANT DIAMETER THROUGHOUT ITS LENGTH AND BEING OPEN AT ONE END AND CLOSED AT THE OTHER, END, SAID MIXING DRUM IN NORMAL MIXING OPERATION BEING POSITIONED IN A MANNER THAT ITS AXIS IS AT A SMALL ANGLE TO GROUNG LEVEL, AND MIXING PADDLE MEANS BEING POSITIONED IN SAID DRUM AT AN ANGLE TO SAID AXIS AND ADJACENT SAID OPEN END FOR DIRECTING SAID SUBSTANCES BEING MIXED AWAY FROM SAID OPEN END AND TOWARD SAID CLOSED END OF SAID DRUM, AND SAID MIXING PADDLE HAVING A SURFACE ADJACENT TO THE INSIDE SURFACE OF SAID DRUM AND BEING SPACED THEREFROM AND IN AN INCREASING ANGLE.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |