US2928752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paraffin emulsions for protection of masonry surfaces during setting
Assignee: Dehydag Deutsche Hydrierwerke GmbH
•
Filing: 1957-09-10
•
Granted: 1960-03-15
•
Expires: 1977-09-10
Abstract
No abstract record available.
Inventors
- 👤 Felletschin Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:12
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B40/00; C04B40/04; C04B41/45; C04B41/46; C04B41/47; C04B41/478; C04B41/60; C04B41/61; C04B41/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN AQUEOUS EMULSION ADAPTED FOR USE AS A PROTECTIVE COATING ON MASONRY SURFACES DURING THE SETTING PERIOD CONSISTING ESSENTIALLY OF WATER, 2-50 WEIGHT PERCENT PARAFFIN, ABOUT 10 WEIGHT PERCENT OF AN ADDITION PRODUCT OF 5-50 MOLS OF ETHYLENE OXIDE AND 1 MOL OLEYL ALCOHOL, 2-20 WEIGHT PERCENT OF AN OLEIC ACID AMINE SALT HAVING A CHAIN LENGTH OF 12 TO 18 CARBON ATOMS IN THE AMINE RADICAL, ABOUT 4 WEIGHT PERCENT OF AT LEAST ONE FATTY ALCOHOL HAVING 166 TO 20 CARBON ATOMS, AND FROM 0-10 WEIGHT PERCENT MINERAL OIL.
Claim 2
Dependent Claim
90 words
AN AQUEOUS EMULSION ADAPTED FOR USE AS A PROTECTIVE COATING ON MASONRY SURFACES DURING THE SETTING PERIOD CONSISTING ESSENTIALLY OF WATER, 2-50 WEIGHT PERCENT PARAFFIN, ABOUT 10 WEIGHT PERCENT OF AN ADDITION PRODUCT OF 5-50 MOLS OF ETHYLENE OXIDE AND 1 MOL OLEYL ALCOHOL, 2-20 WEIGHT PERCENT OF AN OLEIC ACID AMINE SALT HAVING A CHAIN LENGTH OF 12 TO 18 CARBON ATOMS IN THE AMINE RADICAL, ABOUT 4 WEIGHT PERCENT OF AT LEAST ONE FATTY ALCOHOL HAVING 166 TO 20 CARBON ATOMS, AND FROM 0-10 WEIGHT PERCENT MINERAL OIL.
References Cited (Backward Citations)
US2057413A
Cited
US2206090A
Cited
US2274509A
Cited
US2298147A
Cited
US2350800A
Cited
US2395025A
Cited
US2782124A
Cited
US2759849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |