Patent US3239479A successfully refreshed from Google Patents.
US3239479A
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US
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Cement compositions containing a polymer latex
Assignee: Dow Chemical Co
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Filing: 1961-01-23
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Granted: 1966-03-08
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Franklin W Roenicke
- 👤 Albert A Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/26; C04B24/2682; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PORTLAND CEMENT MORTAR COMPOSITION WHICH COMPRISES A MIXTURE OF PORTLAND CEMENT, AN AGGREGATE MATERIAL, WATER, A POLYMER LATEX, AND A HUMECTANT SELECTED FROM THE GROUP CONSISTING OF DIETHYLENE GLYCOL AND TRIETHYLENE GLYCOL IN AN AMOUNT OF FROM 1.0 TO 10 WEIGHT PERCENT, BASED UPON THE DRY WEIGHT OF THE CEMENT IN THE COMPOSITION.
Claim 2
Dependent Claim
54 words
A PORTLAND CEMENT MORTAR COMPOSITION WHICH COMPRISES A MIXTURE OF PORTLAND CEMENT, AN AGGREGATE MATERIAL, WATER, A POLYMER LATEX, AND A HUMECTANT SELECTED FROM THE GROUP CONSISTING OF DIETHYLENE GLYCOL AND TRIETHYLENE GLYCOL IN AN AMOUNT OF FROM 1.0 TO 10 WEIGHT PERCENT, BASED UPON THE DRY WEIGHT OF THE CEMENT IN THE COMPOSITION.
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |