US2796030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump for handling viscous materials
Assignee: Individual
•
Filing: 1954-05-24
•
Granted: 1957-06-18
•
Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Nebel Franz Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:22
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/40; F04C2/46
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |