Patent US4192285A successfully refreshed from Google Patents.
Patent US3240665A successfully refreshed from Google Patents.
US3240665A
Expired / Lapsed
US
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Offset grating assemblies for dewatering a paper web
Assignee: TI Gotham Inc
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Filing: 1963-08-19
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Granted: 1966-03-15
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 David E Robinson
- 👤 Moran James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:00
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/003
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
APPARATUS FOR FORMING PAPER COMPRISING FIRST AND SECOND MOVABLE PERMEABLE BELTS POSITIONED TO MOVE IN OPPOSED RELATION THROUGH A FORMING ZONE GENERALLY IN THE SAME DIRECTION AND TO CARRY THEREBETWEEN A PAPER STOCK, FIRST AND SECOND PLURALITIES OF BLADES, EACH BLADE OF SAID FIRST PLURALITY OF BLADES HAVING AN EDGE POSITIONED TO CONTACT SAID FIRST BELT AND EACH BLADE OF SAID SECOND PLURALITY OF BLADES HAVING AN EDGE POSITIONED TO CONTACT SAID SECOND BELT, AND BLADE-MOUNTING MEANS FOR EFFECTING A MOUNTING OF SAID BLADES ESTABLISHING A CONVERGENCE OF SAID BELTS FACILITATING CONTROLLED DEWATERING OF SAID STOCK AND FORMATION OF A PAPER WEB, SAID EDGES OF SAID FIRST PLURALITY OF BLADES BEING OFFSET FROM PLANES WHICH (A) CONTAIN SAID EDGES OF SAID SECOND PLURALITY OF BLADES AND (B) ARE NORMAL TO SAID BELTS.
References Cited (Backward Citations)
US2881676A
Cited
US3149028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |