US2455284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal machine
Assignee: Machinefabriek Reineveld NV
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Filing: 1946-07-25
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Granted: 1948-11-30
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Expires: 1966-07-25
Abstract
No abstract record available.
Inventors
- 👤 Pieter Van Riel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:39
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19121; Y10T74/1955; Y10T74/1987; Y10T74/19888
Claims Analysis
Total Claims: 0
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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) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |