US2767030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conveying pulverulent material in fixed installations
Assignee: ATKINSON BULK TRANSP Co
•
Filing: 1951-12-21
•
Granted: 1956-10-16
•
Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Fred M Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:37
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)
US1240409A
Cited
US1616547A
Cited
US1796215A
Cited
US1889163A
Cited
US1898356A
Cited
US2325432A
Cited
US2440482A
Cited
US2565835A
Cited
US2572862A
Cited
US2684870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |