US3240616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of activating bentonite clays
Assignee: Individual
•
Filing: 1962-08-27
•
Granted: 1966-03-15
•
Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Harasowski Jerzy
- 👤 Paczek Helena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:24
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/131; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A METHOD OF ACTIVATING BENTONITE CLAY WITH AN ALKALI ACTIVATOR SOLUTION, AN IMPROVEMENT COMPRISING APPLYING THE SOLUTION TO THE CLAY PRIOR TO MECHANICAL WORKING OF THE SAME TO RETAIN THE NATURAL INITIAL STRUCTURE OF THE CLAY, THE SOLUTION BEING APPLIED IN AN AMOUNT TO ACTIVATE THE CLAY, MAINTAINING THE SOLUTION IN CONTACT WITH THE CLAY IN A STATIC CONDITION FRO A PERIOD OF TIME BETWEEN ONE TO ONE HUNDRED HOURS, DRYING THE CLAY PRIOR TO ANY MECHANICAL WORKING OF THE SAME, AND SUBSEQUENTLY MECHANICALLY MILLING THE THUS ACTIVATED BENTONITE CLAY AFTER THE SAME HAS BEEN DRIED.
Claim 2
Dependent Claim
97 words
IN A METHOD OF ACTIVATING BENTONITE CLAY WITH AN ALKALI ACTIVATOR SOLUTION, AN IMPROVEMENT COMPRISING APPLYING THE SOLUTION TO THE CLAY PRIOR TO MECHANICAL WORKING OF THE SAME TO RETAIN THE NATURAL INITIAL STRUCTURE OF THE CLAY, THE SOLUTION BEING APPLIED IN AN AMOUNT TO ACTIVATE THE CLAY, MAINTAINING THE SOLUTION IN CONTACT WITH THE CLAY IN A STATIC CONDITION FRO A PERIOD OF TIME BETWEEN ONE TO ONE HUNDRED HOURS, DRYING THE CLAY PRIOR TO ANY MECHANICAL WORKING OF THE SAME, AND SUBSEQUENTLY MECHANICALLY MILLING THE THUS ACTIVATED BENTONITE CLAY AFTER THE SAME HAS BEEN DRIED.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |