Patent US1733410A successfully refreshed from Google Patents.
US1733410A
Expired / Lapsed
US
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Method of proportioning aggregates and water for concrete
Assignee: Individual
•
Filing: 1927-02-26
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Granted: 1929-10-29
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Expires: 1947-02-26
Abstract
No abstract record available.
Inventors
- 👤 Charles S Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:13
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/0404; B28C7/0409
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) | 1932-10-28 | 1933-04-29 | 1933-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-10-28 | 1937-04-29 | 1937-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-10-28 | 1941-04-29 | 1941-10-29 | $7700.00 | Window Closed / Lapsed |