US1681493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making building material
Assignee: JAY D MILLER
•
Filing: 1925-02-16
•
Granted: 1928-08-21
•
Expires: 1945-02-16
Abstract
No abstract record available.
Inventors
- 👤 John J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:35
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/02; B28B1/00; B28B1/14; B28B1/16; B28B1/52; B28B19/00; B28B19/0015; 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) | 1931-08-21 | 1932-02-20 | 1932-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-08-21 | 1936-02-20 | 1936-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-08-21 | 1940-02-20 | 1940-08-21 | $7700.00 | Window Closed / Lapsed |