US828976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for rapid hardening of cement.
Assignee: Individual
•
Filing: 1906-04-27
•
Granted: 1906-08-21
•
Expires: 1926-04-27
Abstract
No abstract record available.
Inventors
- 👤 Herman Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:37
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/001; B; B09; B09C; B09C1/00; B09C1/08; B09C1/085; Y; Y10; Y10S; Y10S264/00; Y10S264/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1909-08-20 | 1910-02-19 | 1910-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-08-20 | 1914-02-19 | 1914-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-08-20 | 1918-02-19 | 1918-08-21 | $7700.00 | Window Closed / Lapsed |