US2487364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically opening separator bowl
Assignee: Superior AB
•
Filing: 1944-04-17
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Granted: 1949-11-08
•
Expires: 1964-04-17
Abstract
No abstract record available.
Inventors
- 👤 Ortenblad Sture John Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:45
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/10; B04B1/14; B04B1/16; B04B1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1585393A
Cited
GB337970A
Cited
US1921181A
Cited
US2091329A
Cited
FR815355A
Cited
US2178547A
Cited
US2209554A
Cited
US2378778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |