US1794572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite brick
Assignee: AMERICAN FACE BRICK RES CORP
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Filing: 1928-12-17
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Granted: 1931-03-03
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Expires: 1948-12-17
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Wyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:09
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; Y; Y10; Y10S; Y10S264/00; Y10S264/57
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) | 1934-03-02 | 1934-09-01 | 1935-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-02 | 1938-09-01 | 1939-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-02 | 1942-09-01 | 1943-03-03 | $7700.00 | Window Closed / Lapsed |