US3243307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic cement mortar compositions
Assignee: Tile Council of America Inc
•
Filing: 1961-04-19
•
Granted: 1966-03-29
•
Expires: 1981-04-19
Abstract
No abstract record available.
Inventors
- 👤 Selden George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:16
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A DRY MORTAR-FORMING COMPOSITION CONSISTING ESSENTIALLY, BY WEIGHT, OF ABOUT 1.2% HYDROXYETHYL CELLULOSE HAVING A VISCOSITY OF ABOUT 15,000 CPS. AS A 2% BY WEIGHT SOLUTION IN WATER AT 25*C., ABOUT 1.7% FINELY DIVIDED INORGANIC FIBERS AND ABOUT 97.1% HYDRAULIC CEMENT.
Claim 2
Dependent Claim
41 words
A DRY MORTAR-FORMING COMPOSITION CONSISTING ESSENTIALLY, BY WEIGHT, OF ABOUT 1.2% HYDROXYETHYL CELLULOSE HAVING A VISCOSITY OF ABOUT 15,000 CPS. AS A 2% BY WEIGHT SOLUTION IN WATER AT 25*C., ABOUT 1.7% FINELY DIVIDED INORGANIC FIBERS AND ABOUT 97.1% HYDRAULIC CEMENT.
References Cited (Backward Citations)
US2580565A
Cited
US2738285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |