US2492895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete mixer
Assignee: Individual
•
Filing: 1946-10-19
•
Granted: 1949-12-27
•
Expires: 1966-10-19
Abstract
No abstract record available.
Inventors
- 👤 Fred H Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:18
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/18; B28C5/1825; B28C5/1831; Y; Y10; Y10S; Y10S366/00; Y10S366/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1369870A
Cited
US1475904A
Cited
US1777318A
Cited
US1867838A
Cited
GB447695A
Cited
US2397851A
Cited
US2447071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |