US3782983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air entrainment compositions for cement mortars
Assignee: Rhone Poulenc Surfactants and Specialties LP
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Filing: 1970-05-18
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Granted: 1974-01-01
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Expires: 1990-05-18
Abstract
Abstract A COMPOSITION FOR IMPARTING AIR ENTRAINMENT TO CEMENT MORTARS COMPRISING SALTS OF SULFATE ESTES DERIVED FROM: (A) STRAIGHT OR BRANCHED CHAIN ALCOHOLS CONTAINING 0-65% BY WEIGHT OF ETHYLENE OXIDE, WHEREIN THE ALCOHOL PORTION HAS 8-10 CARBON ATOMS, AND (B) ALKYL ARYL ALCOHOLS CONTAINING 0-65% BY WEIGHT OF ETHYLENE OXIDE, WHEREN THE ALKYL GROUP HAS 2-7 CARBON ATOMS.
Inventors
- 👤 J Komor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:26
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |