US3076610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of fibre suspensions
Assignee: Sulzer Escher Wyss GmbH
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Filing: 1961-07-10
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Granted: 1963-02-05
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Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Rosenfeld Klaus
- 👤 Mickley Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:07
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
PROCESS FOR THE PREPARATION OF A FIBRE SUSPENSION, MORE PARTICULARLY IN PAPER MAKING, WHICH CONSISTS IN CONCENTRATING THE SAID FIBRE SUSPENSION BY REMOVAL OF LIQUID TO A FIBRE PULP OF AT LEAST 15% PULP CONSISTENCY AND TREATING THE SO-OBTAINED FIBRE PULP BY LEADING IT IN A SUBSTANTIALLY RADIAL DIRECTION THROUGH THE INTERSTICES OF RELATIVELY
Claim 2
Dependent Claim
54 words
PROCESS FOR THE PREPARATION OF A FIBRE SUSPENSION, MORE PARTICULARLY IN PAPER MAKING, WHICH CONSISTS IN CONCENTRATING THE SAID FIBRE SUSPENSION BY REMOVAL OF LIQUID TO A FIBRE PULP OF AT LEAST 15% PULP CONSISTENCY AND TREATING THE SO-OBTAINED FIBRE PULP BY LEADING IT IN A SUBSTANTIALLY RADIAL DIRECTION THROUGH THE INTERSTICES OF RELATIVELY
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |