US2945688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing white cement
Assignee: GEA Group AG
•
Filing: 1959-02-06
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Granted: 1960-07-19
•
Expires: 1979-02-06
Abstract
No abstract record available.
Inventors
- 👤 Pajenkamp Horst
- 👤 Russ Alfred
- 👤 Strassen Heinrich Zur
- 👤 Meyer Kurt
- 👤 Rausch Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:22
CPC Classifications
C; C04; C04B; C04B7/00; C04B7/36; C04B7/43; C04B7/44; C04B7/4461
Claims Analysis
Total Claims: 0
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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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |