Patent US2522973A successfully refreshed from Google Patents.
Patent US2955947A successfully refreshed from Google Patents.
US2955947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous ceramic products and method
Assignee: Kimberly Clark Corp
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Filing: 1958-03-17
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Granted: 1960-10-11
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Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Archibald R Gmeiner
- 👤 Clarence R Hackbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:19
CPC Classifications
C; C04; C04B; C04B20/00; C04B20/02; C04B20/04; C04B20/06; C04B20/068
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
37 words
A COMPOSITION CONSISTING ESSENTIALLY OF A PRECONCENTRATED SPENT SULFITE LIQUOR HAVING A SOLIDS CONTENT OF 25-65 PERCENT AND AN ALKALI NITRATE N AN AMOUNT EQUAL TO 10-30 PERCENT OF THE WEIGHT OF THE SULFITE LIQUOR SOLIDS CONTENT.
Claim 2
Dependent Claim
37 words
A COMPOSITION CONSISTING ESSENTIALLY OF A PRECONCENTRATED SPENT SULFITE LIQUOR HAVING A SOLIDS CONTENT OF 25-65 PERCENT AND AN ALKALI NITRATE N AN AMOUNT EQUAL TO 10-30 PERCENT OF THE WEIGHT OF THE SULFITE LIQUOR SOLIDS CONTENT.
Claim 3
Dependent Claim
77 words
IN A PROCESS FOR MAKING LIGHTWEIGHT AGGREGATE WHEREIN A SINTER MIX OF PULVERIZED SHALE AND PULVERIZED CARBONIFEROUS MATERIAL IS MIXED WITH WATER, PELLETIZED, SINTERED AND CRUSHED, THE STEP WHICH COMPRISES MIXING WITH THE SINTER MIX DURING THE PELLETIZING OPERATIONS, A COMPOSITION CONSISTING ESSENTIALLY OF A PRECONCENTRATED SPENT SULFITE LIQUOR HAVING A SOLIDS CONTENT OF ABOUT 25-65 PERCENT AND AN ALKALI NITRATE IN AN AMOUNT EQUAL TO ABOUT 10-30 PERCENT OF THE WEIGHT OF THE SULFITE LIQUOR SOLIDS.
Claim 4
Dependent Claim
77 words
IN A PROCESS FOR MAKING LIGHTWEIGHT AGGREGATE WHEREIN A SINTER MIX OF PULVERIZED SHALE AND PULVERIZED CARBONIFEROUS MATERIAL IS MIXED WITH WATER, PELLETIZED, SINTERED AND CRUSHED, THE STEP WHICH COMPRISES MIXING WITH THE SINTER MIX DURING THE PELLETIZING OPERATIONS, A COMPOSITION CONSISTING ESSENTIALLY OF A PRECONCENTRATED SPENT SULFITE LIQUOR HAVING A SOLIDS CONTENT OF ABOUT 25-65 PERCENT AND AN ALKALI NITRATE IN AN AMOUNT EQUAL TO ABOUT 10-30 PERCENT OF THE WEIGHT OF THE SULFITE LIQUOR SOLIDS.
References Cited (Backward Citations)
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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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |