US2496077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Revolving cement mixer screen
Assignee: Individual
•
Filing: 1947-02-10
•
Granted: 1950-01-31
•
Expires: 1967-02-10
Abstract
No abstract record available.
Inventors
- 👤 Wehner Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:05
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/18; B28C5/20; B28C5/2045; B28C5/2054
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB189515098A
Cited
US1106022A
Cited
US1185255A
Cited
US1231694A
Cited
US1402520A
Cited
US1460571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |