Patent US690005A successfully refreshed from Google Patents.
Patent US3149794A successfully refreshed from Google Patents.
US3149794A
Expired / Lapsed
US
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Refiner case structure
Assignee: Bauer Brothers Co
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Filing: 1961-02-10
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Granted: 1964-09-22
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Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 James E Irvine
- 👤 Donald P Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:29
CPC Classifications
B; B02; B02C; B02C7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
REFINER APPARATUS INCLUDING, A BASE, MEANS DEFINING A DISCHARGE OPENING THERETHROUGH, VERTICALLY PROJECTED SUPPORTS THEREON TO OPPOSITE SIDES OF SAID OPENING, REFINER DISCS POSITIONED OVER SAID OPENING IN ELEVATED SPACED RELATION TO SAID BASE, A REFINER CASE STRUCTURE INCLUDING A HOOD AND A CHUTE SECTION POSITIONED TO FORM AN ENCLOSURE ABOUT AND IN SPACED RELATION TO SAID REFINER DISCS, MEANS DEFINING OPPOSED APERTURES IN SAID
Claim 2
Dependent Claim
65 words
REFINER APPARATUS INCLUDING, A BASE, MEANS DEFINING A DISCHARGE OPENING THERETHROUGH, VERTICALLY PROJECTED SUPPORTS THEREON TO OPPOSITE SIDES OF SAID OPENING, REFINER DISCS POSITIONED OVER SAID OPENING IN ELEVATED SPACED RELATION TO SAID BASE, A REFINER CASE STRUCTURE INCLUDING A HOOD AND A CHUTE SECTION POSITIONED TO FORM AN ENCLOSURE ABOUT AND IN SPACED RELATION TO SAID REFINER DISCS, MEANS DEFINING OPPOSED APERTURES IN SAID
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |