Patent US3291678A successfully refreshed from Google Patents.
US3291678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of compressing creped paper tissue stacks at specific moisture content
Assignee: Kimberly Clark Corp
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Filing: 1964-05-15
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Granted: 1966-12-13
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Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Enloe
- 👤 Le Roy L Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:37
CPC Classifications
B; B31; B31D; B31D1/00; B31D1/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
79 words
IN A METHOD OF MAKING PAPER TISSUE, THE STEPS WHICH COMPRISE, CREPING PAPER TISSUE FROM THE DRIER DRUM OF A PAPERMAKING MACHINE WITH THE PAPER TISSUE HAVING A MOISTURE CONTENT OF LESS THAM 5 PERCENT, CALENDERING AND STRETCHING THE CREPED TISSUE SO AS TO REMOVE SOME OF THE CREPING, ADDING MOISTURE TO THE TISSUE SUBSEQUENT TO SAID STRETCHING AND CREPING TO INCREASE THE MOISTURE TO TENT TO 51/2 PERCENT $1 PERCENT, AND SUBSEQUENTLY WINDING THE TISSUE INTO A ROLL.
Claim 2
Dependent Claim
79 words
IN A METHOD OF MAKING PAPER TISSUE, THE STEPS WHICH COMPRISE, CREPING PAPER TISSUE FROM THE DRIER DRUM OF A PAPERMAKING MACHINE WITH THE PAPER TISSUE HAVING A MOISTURE CONTENT OF LESS THAM 5 PERCENT, CALENDERING AND STRETCHING THE CREPED TISSUE SO AS TO REMOVE SOME OF THE CREPING, ADDING MOISTURE TO THE TISSUE SUBSEQUENT TO SAID STRETCHING AND CREPING TO INCREASE THE MOISTURE TO TENT TO 51/2 PERCENT $1 PERCENT, AND SUBSEQUENTLY WINDING THE TISSUE INTO A ROLL.
Claim 3
Independent Claim
130 words
THE METHOD OF MAKING STACKS OF CREPED TISSUE PAPER OF BASIS WEIGHT (UNCREPED) OF ABOUT 7.6 POUNDS PER 2,880 SQUARE FEET AND HAVING A CREPE RATIO OF ABOUT 20 PERCENT, THE PAPER BEING MADE OF BLEACHED FURNISH TO WHICH NO SIZING IS ADDED AND WHICH IS DRY CREPED AND CALENDERED, COMPRISING THE STEPS OF FOLDING SHEETS OF THE CREPED TISSUE PAPER HAVING A MOISTURE CONTENT OF ABOUT 51/2 PERCENT INTO STACKS, COMPRESSING SUCH STACKS IN THE DIRECTION PERPENDICULAR TO THE PAPER UNDER A PRESSURE BETWEEN 15 AND 890 POUNDS PER SQUARE INCH, AND THEREAFTER RELEASING THE STACKS FROM SUCH COMPRESSION TO THEREBY FORM STACKS WHICH ARE SUBSTANTIALLY LESS IN HEIGHT THAN THE ORIGINAL HEIGHT OF THE STACKS BEFORE COMPRESSION AND IN WHICH THE SHEETS ARE SOFT AND SMOOTH AND LIMP.
Claim 4
Independent Claim
130 words
THE METHOD OF MAKING STACKS OF CREPED TISSUE PAPER OF BASIS WEIGHT (UNCREPED) OF ABOUT 7.6 POUNDS PER 2,880 SQUARE FEET AND HAVING A CREPE RATIO OF ABOUT 20 PERCENT, THE PAPER BEING MADE OF BLEACHED FURNISH TO WHICH NO SIZING IS ADDED AND WHICH IS DRY CREPED AND CALENDERED, COMPRISING THE STEPS OF FOLDING SHEETS OF THE CREPED TISSUE PAPER HAVING A MOISTURE CONTENT OF ABOUT 51/2 PERCENT INTO STACKS, COMPRESSING SUCH STACKS IN THE DIRECTION PERPENDICULAR TO THE PAPER UNDER A PRESSURE BETWEEN 15 AND 890 POUNDS PER SQUARE INCH, AND THEREAFTER RELEASING THE STACKS FROM SUCH COMPRESSION TO THEREBY FORM STACKS WHICH ARE SUBSTANTIALLY LESS IN HEIGHT THAN THE ORIGINAL HEIGHT OF THE STACKS BEFORE COMPRESSION AND IN WHICH THE SHEETS ARE SOFT AND SMOOTH AND LIMP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |