US2839415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic products
Assignee: Kimberly Clark Corp
•
Filing: 1955-09-13
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Granted: 1958-06-17
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Expires: 1975-09-13
Abstract
No abstract record available.
Inventors
- 👤 Archibald R Gmeiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:57
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; C09; C09B; C09B63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A METHOD OF MAKING STRUCTURAL CLAY PRODUCTS COMPRISING THE STEPS OF MIXING COMMINUTED CLAY PARTICLES IN A PUG MILL WITH WASTE SULFITE LIQUOR AND TEMPERING WATER, SAID WASTE SULFITE LIQUOR BEING PRESENT IN THE PUG MILL IN AN AMOUNT OF FROM ABOUT 0.1 TO 1.0 PERCENT SOLIDS BY WEIGHT OF THE FINISHED CLAY PRODUCT, SAID WASTE SULFITE LIQUOR BEING SELECTED FROM THE CLASS CONSISTING OF CALCIUM. MAGNESIUM AND AMMONIUM BASE LIQUORS AND HAVING BEEN CONCENTRATED PRIOR TO INTRODUCTION INTO THE PUB MILL TO PROVIDE A SOLIDS CONTENT FOR THE LIQUOR OF FROM ABOUT 25 TO 65 PERCENT, SAID CLAY, TEMPERINT WATER AND WASTE SULFITE LIQUOR BEING MIXED TOGETHER IN THE PUB MILL OVER A PERIOD OF TIME SUFFICIENT TO ACHIEVE UNIFORM DISPERSAL OF THE CONSTITUENTS OF THE MIX, FORMING SAID MIX UNDER PRESSURE, AND DRYING AND FIRING THE SHAPED CLAY PRODUCTS.
Claim 2
Independent Claim
141 words
A METHOD OF MAKING STRUCTURAL CLAY PRODUCTS COMPRISING THE STEPS OF MIXING COMMINUTED CLAY PARTICLES IN A PUG MILL WITH WASTE SULFITE LIQUOR AND TEMPERING WATER, SAID WASTE SULFITE LIQUOR BEING PRESENT IN THE PUG MILL IN AN AMOUNT OF FROM ABOUT 0.1 TO 1.0 PERCENT SOLIDS BY WEIGHT OF THE FINISHED CLAY PRODUCT, SAID WASTE SULFITE LIQUOR BEING SELECTED FROM THE CLASS CONSISTING OF CALCIUM. MAGNESIUM AND AMMONIUM BASE LIQUORS AND HAVING BEEN CONCENTRATED PRIOR TO INTRODUCTION INTO THE PUB MILL TO PROVIDE A SOLIDS CONTENT FOR THE LIQUOR OF FROM ABOUT 25 TO 65 PERCENT, SAID CLAY, TEMPERINT WATER AND WASTE SULFITE LIQUOR BEING MIXED TOGETHER IN THE PUB MILL OVER A PERIOD OF TIME SUFFICIENT TO ACHIEVE UNIFORM DISPERSAL OF THE CONSTITUENTS OF THE MIX, FORMING SAID MIX UNDER PRESSURE, AND DRYING AND FIRING THE SHAPED CLAY PRODUCTS.
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |