Patent US2622989A successfully refreshed from Google Patents.
US2622989A
Expired / Lapsed
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Cementitious structural composition
Assignee: Individual
•
Filing: 1951-01-06
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Granted: 1952-12-23
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Expires: 1971-01-06
Abstract
No abstract record available.
Inventors
- 👤 Keyishian Aram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:59
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A CEMENTITIOUS STRUCTURAL COMPOSITION CONSISTING ESSENTIALLYL OF PORTLAND CEMENT,AN AGGREGATE MATERIAL, A MEMBER OF THE GROUP CONSISTING OF SODIUM AND POTASSIUM HYDROXIDE, AND A MEMBER OF THE GROUP CONSISTING OF MAGNESIUM SULFATE, POTASSIUM SULFATE AND SODIUM SULFATE, THE SAID CHEMICAL AGENTS BEING BY WEIGHT LESS THAN THE WEIGHT OF THE CEMENT AND NOT LESS THAN 0.33% OF THE CEMENT.
Claim 2
Dependent Claim
59 words
A CEMENTITIOUS STRUCTURAL COMPOSITION CONSISTING ESSENTIALLYL OF PORTLAND CEMENT,AN AGGREGATE MATERIAL, A MEMBER OF THE GROUP CONSISTING OF SODIUM AND POTASSIUM HYDROXIDE, AND A MEMBER OF THE GROUP CONSISTING OF MAGNESIUM SULFATE, POTASSIUM SULFATE AND SODIUM SULFATE, THE SAID CHEMICAL AGENTS BEING BY WEIGHT LESS THAN THE WEIGHT OF THE CEMENT AND NOT LESS THAN 0.33% OF THE CEMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |