US2888322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline-earth metal silicates
Assignee: Bayer AG
•
Filing: 1954-11-29
•
Granted: 1959-05-26
•
Expires: 1974-11-29
Abstract
No abstract record available.
Inventors
- 👤 Podschus Ernst
- 👤 Kollmann Odilo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:14
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/22; C01B33/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A METHOD OF PREPARING CALCIUM SILICATE WHICH COMPRISES ESTABLISHING AN AQUEOUS POOL, RAPIDLY ROTATING A LIQUID ZONE OF SAID POOL DISPOSED BELOW THE LIQUID LEVEL OF THE POOL AND THEREBY ESTABLISHING A RAPIDLY ROTATING ZONE OF HIGH SHEAR IN THE POOL AND CREATING STREAMS OF AQUEOUS MEDIUM FLOWING OUTWARDLY FROM SAID ZONE IN A LATERAL DIRECTION TOWARD THE EDGE OF THE POOL, THEN UPWARD TOWARD THE TOP OF THE POOL, AND THEN DOWNWARD INTO SAID ZONE, AND INTRODUCING SODIUM SILICATE AND CALCIUM CHLORIDE DIRECTLY INTO SAID RAPIDLY ROTATING ZONE WHEREBY SODIUM SILICATE REACTS WITH THE CALCIUM CHLORIDE IN SAID ZONE AND IS MIXED WITH SAID AQUEOUS STREAM AND BECOMES A PART THEREOF AND AVOIDING THE ESTABLISHMENT OF AN EXCESS OF SODIUM SILICATE IN SAID ZONE.
Claim 2
Independent Claim
125 words
A METHOD OF PREPARING CALCIUM SILICATE WHICH COMPRISES ESTABLISHING AN AQUEOUS POOL, RAPIDLY ROTATING A LIQUID ZONE OF SAID POOL DISPOSED BELOW THE LIQUID LEVEL OF THE POOL AND THEREBY ESTABLISHING A RAPIDLY ROTATING ZONE OF HIGH SHEAR IN THE POOL AND CREATING STREAMS OF AQUEOUS MEDIUM FLOWING OUTWARDLY FROM SAID ZONE IN A LATERAL DIRECTION TOWARD THE EDGE OF THE POOL, THEN UPWARD TOWARD THE TOP OF THE POOL, AND THEN DOWNWARD INTO SAID ZONE, AND INTRODUCING SODIUM SILICATE AND CALCIUM CHLORIDE DIRECTLY INTO SAID RAPIDLY ROTATING ZONE WHEREBY SODIUM SILICATE REACTS WITH THE CALCIUM CHLORIDE IN SAID ZONE AND IS MIXED WITH SAID AQUEOUS STREAM AND BECOMES A PART THEREOF AND AVOIDING THE ESTABLISHMENT OF AN EXCESS OF SODIUM SILICATE IN SAID ZONE.
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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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |