Patent US2454924A successfully refreshed from Google Patents.
US2454924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barrel washer
Assignee: Individual
•
Filing: 1944-05-19
•
Granted: 1948-11-30
•
Expires: 1964-05-19
Abstract
No abstract record available.
Inventors
- 👤 George L Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:32
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/0804; B08B9/0808
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE162712C
Cited
US400346A
Cited
US450149A
Cited
US966507A
Cited
US972058A
Cited
US1015585A
Cited
US1231092A
Cited
US1644386A
Cited
FR553774A
Cited
US1662995A
Cited
US2328675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |