US2963397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing quality controlled pulp molded articles
Assignee: GE Healthcare UK Ltd
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Filing: 1957-06-21
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Granted: 1960-12-06
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Expires: 1977-06-21
Abstract
No abstract record available.
Inventors
- 👤 Mcleod Thomas Symington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:07
CPC Classifications
D; D21; D21J; D21J7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A CYCLIC FELTING PROCESS, EACH CYCLE OF WHICH INCLUDES DIPPING A POROUS FELTING FORM INTO AND LIFTING IT OUT OF A RECEPTACLE CONTAINING A BATH OF PULP AT A PREDETERMINED LEVEL THUS OBTAINING IMMERSION FOR A PREDETERMINED PERIOD OF TIME, THE STEPS OF PERIODICALLY WEIGHTING THE SO PRODUCED BODIES TO DETERMINE ANY VARIATION IN WEIGHT FROM A PREDETERMINED VALUE, CORRECTING ANY ERRORS IN WEIGHT BY ADJUSTING THE AMOUNT OF FLOW OF PULP INTO THE RECEPTACLE FROM A RESERVOIR DURING EACH CYCLE AND CHANGING THE LENGTH OF TIME OF IMMERSION OF THE POROUS FELTING FORM.
Claim 2
Dependent Claim
95 words
IN A CYCLIC FELTING PROCESS, EACH CYCLE OF WHICH INCLUDES DIPPING A POROUS FELTING FORM INTO AND LIFTING IT OUT OF A RECEPTACLE CONTAINING A BATH OF PULP AT A PREDETERMINED LEVEL THUS OBTAINING IMMERSION FOR A PREDETERMINED PERIOD OF TIME, THE STEPS OF PERIODICALLY WEIGHTING THE SO PRODUCED BODIES TO DETERMINE ANY VARIATION IN WEIGHT FROM A PREDETERMINED VALUE, CORRECTING ANY ERRORS IN WEIGHT BY ADJUSTING THE AMOUNT OF FLOW OF PULP INTO THE RECEPTACLE FROM A RESERVOIR DURING EACH CYCLE AND CHANGING THE LENGTH OF TIME OF IMMERSION OF THE POROUS FELTING FORM.
References Cited (Backward Citations)
US1857275A
Cited
US1804203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |