US3030153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic conveyor system
Assignee: Baker Perkins Inc
•
Filing: 1959-06-01
•
Granted: 1962-04-17
•
Expires: 1979-06-01
Abstract
No abstract record available.
Inventors
- 👤 Norman O Krenke
- 👤 Eugene D Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:33
CPC Classifications
A; A21; A21C; A21C1/00; A21C1/14; A21C1/142; A21C1/143; B; B65; B65G; B65G53/00; B65G53/34; B65G53/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2010231A
Cited
US2572862A
Cited
US2688517A
Cited
US2688518A
Cited
US2810609A
Cited
US2895768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |