US1684525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming cement blocks
Assignee: Individual
•
Filing: 1927-06-02
•
Granted: 1928-09-18
•
Expires: 1947-06-02
Abstract
No abstract record available.
Inventors
- 👤 Tomarin Marcus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/008; B28B1/14; B28B1/16; B28B7/00; B28B7/0097
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) | 1931-09-18 | 1932-03-19 | 1932-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-09-18 | 1936-03-19 | 1936-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-09-18 | 1940-03-19 | 1940-09-18 | $7700.00 | Window Closed / Lapsed |