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US3692728A
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Hydraulic binders and compositions including these binders
Assignee: Progil SARL
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Filing: 1971-03-08
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Granted: 1972-09-19
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Expires: 1991-03-08
Abstract
Abstract COMPOSITIONS FOR MORTARS AND CEMENTS WHICH HARDEN RAPIDLY AND GIVE GREAT RESISTANCE INCLUDING A HYDRAULIC BINDER OF HIGH ALUMINA CEMENT AND A POLYMER OF ACRYLAMIDE AND FORMALDEHYDE AND A POLYMERIZATION CATALYST.
Inventors
- 👤 Bernard Bonnel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:05
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/28; C04B24/30
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |