US2905566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plaster composition
Assignee: Casius Corp Ltd
•
Filing: 1956-04-04
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Granted: 1959-09-22
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Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Bertil John Martin
- 👤 Olsson Karl Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:50
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B14/00; C04B14/02; C04B14/04; C04B18/00; C04B18/02; C04B18/021; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PLASTIC AND SPACKLE COMPOSITION ADAPTED TO BE MIXED WITH WATER TO FORM A MASS OF PASTY AND PLASTIC CONSISTENCY SUITABLE FOR PLASTERING WALLS AND CEILINGS CONSISTING ESSENTIALLY OF A COARSE GRAINED FRACTION OF INORGANIC FILLERS IN AN AMOUNT WITHIN THE RANGE 25-65 PARTS BY WEIGHT, A FINE GRAINED FRACTION OF INORGANIC FILLERS HAVING A GRAIN SIZE BELOW 0.1 MM. IN AN AMOUNT WITHIN THE RANGE 30-70 PARTS BY WEIGHT, AN ORGANIC BINDER CONSISTING OF WATER SOLUBLE CELLULOSE DERIVATIVES IN AN AMOUNT OF 1/10 TO 5% BY WEIGHT BASED ON THE FILLER, SAID FINE GRAINED FRACTION OF FILLER CONTAINING AT LEAST 15% OF A CRYSTALLINE CALCIUM HYDROSILICATE PRODUCED BY A HYDROTHERMAL REACTION AND HAVING A GRAIN SIZE SUBSTANTIALLY WITHIN THE RANGE 0.01-0.001 MM.
Claim 2
Dependent Claim
123 words
A PLASTIC AND SPACKLE COMPOSITION ADAPTED TO BE MIXED WITH WATER TO FORM A MASS OF PASTY AND PLASTIC CONSISTENCY SUITABLE FOR PLASTERING WALLS AND CEILINGS CONSISTING ESSENTIALLY OF A COARSE GRAINED FRACTION OF INORGANIC FILLERS IN AN AMOUNT WITHIN THE RANGE 25-65 PARTS BY WEIGHT, A FINE GRAINED FRACTION OF INORGANIC FILLERS HAVING A GRAIN SIZE BELOW 0.1 MM. IN AN AMOUNT WITHIN THE RANGE 30-70 PARTS BY WEIGHT, AN ORGANIC BINDER CONSISTING OF WATER SOLUBLE CELLULOSE DERIVATIVES IN AN AMOUNT OF 1/10 TO 5% BY WEIGHT BASED ON THE FILLER, SAID FINE GRAINED FRACTION OF FILLER CONTAINING AT LEAST 15% OF A CRYSTALLINE CALCIUM HYDROSILICATE PRODUCED BY A HYDROTHERMAL REACTION AND HAVING A GRAIN SIZE SUBSTANTIALLY WITHIN THE RANGE 0.01-0.001 MM.
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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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |