US2541742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry feeder
Assignee: Wallace & Tiernan Co Inc
•
Filing: 1946-07-20
•
Granted: 1951-02-13
•
Expires: 1966-07-20
Abstract
No abstract record available.
Inventors
- 👤 George M Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:33
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; B65; B65G; B65G33/00; B65G33/24; B65G33/34; B65G33/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1757401A
Cited
US1975015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |