Patent US2505079A successfully refreshed from Google Patents.
US2505079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of gel compositions
Assignee: International Minerals and Chemical Corp
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Filing: 1948-09-03
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Granted: 1950-04-25
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Expires: 1968-09-03
Abstract
No abstract record available.
Inventors
- 👤 Otis W Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:13
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/0201; B01D; B01D53/00; B01D53/02; B01D53/14; B01D53/1493; C; C01; C01B; C01B33/00; C01B33/113; Y; Y10; Y10S; Y10S252/00; Y10S252/963
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF IMPREGNATING A HYGROSCOPIC SILICEOUS GEL WITH A SOLUTION OF IMPREGNANT WHICH COMPRISES, ADMIXING SAID GEL WITH ICE IN AN AMOUNT SUFFICIENT TO PRODUCE A HYDRATED GEL SUBSTANTIALLY SATURATED WITH WATER, PERMITTING THE RESULTANT MIXTURE TO STAND UNTIL THE GEL IS SUBSTANTIALLY SATURATED WITH WATER AND TREATING THE RESULTANT PRODUCT WITH A SOLUTION OF IMPREGNANT AGENT.
Claim 2
Independent Claim
58 words
A METHOD OF IMPREGNATING A HYGROSCOPIC SILICEOUS GEL WITH A SOLUTION OF IMPREGNANT WHICH COMPRISES, ADMIXING SAID GEL WITH ICE IN AN AMOUNT SUFFICIENT TO PRODUCE A HYDRATED GEL SUBSTANTIALLY SATURATED WITH WATER, PERMITTING THE RESULTANT MIXTURE TO STAND UNTIL THE GEL IS SUBSTANTIALLY SATURATED WITH WATER AND TREATING THE RESULTANT PRODUCT WITH A SOLUTION OF IMPREGNANT AGENT.
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) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |