US2515166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge hopper
Assignee: West Virginia Pulp and Paper Co
•
Filing: 1946-04-27
•
Granted: 1950-07-11
•
Expires: 1966-04-27
Abstract
No abstract record available.
Inventors
- 👤 George R Wadleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:04
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US833141A
Cited
US1481152A
Cited
US1644078A
Cited
US1586310A
Cited
US1957921A
Cited
US2185949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |