Patent US3071248A successfully refreshed from Google Patents.
US3071248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cloth attachment for cylindrical screens
Assignee: Nordberg Manufacturing Co
•
Filing: 1959-06-24
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Granted: 1963-01-01
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Expires: 1979-06-24
Abstract
No abstract record available.
Inventors
- 👤 Keith B Lowe
- 👤 Gilbert W Bristow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:03
CPC Classifications
B; B07; B07B; B07B13/00; B07B13/14; B07B13/16; B07B1/00; B07B1/46; B07B1/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A SCREENING DEVICE, A GENERALLY CYLINDRICAL ROTATING SCREEN STRUCTURE, A SCREEN MESH SECURED AROUND THE OUTER PERIPHERY OF SAID SCREEN STRUCTURE, A CYLINDRICAL SUPPORT SECURED TO SAID STRUCTURE AND POSITIONED WITHIN SAID SCREEN MESH SO THAT SAID MESH MAY BE TENSIONED THEREON, AT LEAST TWO VERTICAL SUPPORTS SECURED TO SAID SCREEN STRUCTURE AND EXTENDING GENERALLY THE HEIGHT THEREOF, EACH OF SAID VERTICAL SUPPORTS BEING T-SHAPED WITH THE HEAD OF THE T AWAY FROM THE SCREEN STRUCTURE, A GENERALLY SEMI-CIRCULAR SECURING MEMBER HAVING SPACED, PARALLEL AND PROJECTING EDGES POSITIONED ON OPPOSITE SIDES OF EACH VERTICAL SUP-
Claim 2
Dependent Claim
96 words
IN A SCREENING DEVICE, A GENERALLY CYLINDRICAL ROTATING SCREEN STRUCTURE, A SCREEN MESH SECURED AROUND THE OUTER PERIPHERY OF SAID SCREEN STRUCTURE, A CYLINDRICAL SUPPORT SECURED TO SAID STRUCTURE AND POSITIONED WITHIN SAID SCREEN MESH SO THAT SAID MESH MAY BE TENSIONED THEREON, AT LEAST TWO VERTICAL SUPPORTS SECURED TO SAID SCREEN STRUCTURE AND EXTENDING GENERALLY THE HEIGHT THEREOF, EACH OF SAID VERTICAL SUPPORTS BEING T-SHAPED WITH THE HEAD OF THE T AWAY FROM THE SCREEN STRUCTURE, A GENERALLY SEMI-CIRCULAR SECURING MEMBER HAVING SPACED, PARALLEL AND PROJECTING EDGES POSITIONED ON OPPOSITE SIDES OF EACH VERTICAL SUP-
References Cited (Backward Citations)
US309216A
Cited
US1308384A
Cited
US964144A
Cited
DE609960C
Cited
US2225909A
Cited
US2416499A
Cited
US2500965A
Cited
US2804208A
Cited
DE962309C
Cited
US2850165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |