US3522068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement composition and process for preparing it
Assignee: Individual
•
Filing: 1969-01-27
•
Granted: 1970-07-28
•
Expires: 1989-01-27
Abstract
No abstract record available.
Inventors
- 👤 Stanislaw Bastian
- 👤 Malgorzata Helena Gruener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:15
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; C04B7/00; C04B7/02; C04B2111/00; C04B2111/00474; C04B2111/00732; C04B2111/70; C04B2111/74; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA648626A
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US1712818A
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US1997782A
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US1907003A
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US2288556A
Cited
US2646360A
Cited
US2987407A
Cited
US3087825A
Cited
US2990382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |