US2204113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calcium silicate and method of preparing the same
Assignee: Goodrich Corp
•
Filing: 1937-09-30
•
Granted: 1940-06-11
•
Expires: 1957-09-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond P Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:16
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/24; C01B33/22; C04; C04B; C04B14/00; C04B14/02; C04B14/04; C04B14/043; C08; C08K; C08K3/00; C08K3/34; C09; C09C; C09C1/00; C09C1/28; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/10; C01P2006/80; C01P2006/82; C04B2103/00; C04B2103/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1943-06-11 | 1943-12-11 | 1944-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-06-11 | 1947-12-11 | 1948-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-06-11 | 1951-12-11 | 1952-06-11 | $7700.00 | Window Closed / Lapsed |