Patent US2600372A successfully refreshed from Google Patents.
US2600372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal separator
Assignee: Bird Machine Co Inc
•
Filing: 1949-12-16
•
Granted: 1952-06-10
•
Expires: 1969-12-16
Abstract
No abstract record available.
Inventors
- 👤 George A Milliken
- 👤 Kenneth E Topping
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/20; B04B1/2008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |