Patent US3175689A successfully refreshed from Google Patents.
US3175689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Link suspended centrifugal
Assignee: Western States Machine Co
•
Filing: 1960-10-14
•
Granted: 1965-03-30
•
Expires: 1980-10-14
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Goodwin
- 👤 Jr Thomas R Laven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:49
CPC Classifications
B; B04; B04B; B04B9/00; B04B9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A CENTRIFUGAL COMPRISING A BASKET HAVING A BOTTOM DISCHARGE OPENING, A FIXED CURB STRUCTURE EXTENDING AROUND SAID BASKET, A FLOATING BASKET SUPPORT, MEANS ROTATABLY MOUNTING SAID BASKET ON AND TRANSMITTING THE WEIGHT OF THE BASKET TO SAID SUPPORT, SAID BASKET SUPPORT EXTENDING ACROSS THE CURB STRUCTURE AT A LEVEL BELOW THE BASKET AND BEING CUT AWAY AT LEAST ONE LOCATION UNDER THE BASKET
Claim 2
Dependent Claim
63 words
A CENTRIFUGAL COMPRISING A BASKET HAVING A BOTTOM DISCHARGE OPENING, A FIXED CURB STRUCTURE EXTENDING AROUND SAID BASKET, A FLOATING BASKET SUPPORT, MEANS ROTATABLY MOUNTING SAID BASKET ON AND TRANSMITTING THE WEIGHT OF THE BASKET TO SAID SUPPORT, SAID BASKET SUPPORT EXTENDING ACROSS THE CURB STRUCTURE AT A LEVEL BELOW THE BASKET AND BEING CUT AWAY AT LEAST ONE LOCATION UNDER THE BASKET
References Cited (Backward Citations)
DE303910C
Cited
US1750016A
Cited
US1882968A
Cited
US1815934A
Cited
US2479365A
Cited
US2650116A
Cited
US2708035A
Cited
US2695103A
Cited
US2761564A
Cited
US2780086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |