Patent US2795463A successfully refreshed from Google Patents.
US2795463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic conveying systems
Assignee: Fuller Co
•
Filing: 1953-03-11
•
Granted: 1957-06-11
•
Expires: 1973-03-11
Abstract
No abstract record available.
Inventors
- 👤 Leo G Weller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:04
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US287033A
Cited
US1565893A
Cited
US1937747A
Cited
US1941429A
Cited
US2374584A
Cited
US2572862A
Cited
US2634170A
Cited
US2694496A
Cited
US2681748A
Cited
US2688517A
Cited
US2688518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |