Patent US2867378A successfully refreshed from Google Patents.
US2867378A
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US
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Centrifuging machines
Assignee: International Combustion Holdings Ltd
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Filing: 1954-09-16
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Granted: 1959-01-06
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Expires: 1974-09-16
Abstract
No abstract record available.
Inventors
- 👤 Walter F Harlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:19
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/20; B04B1/2016; B04B2001/2025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675716A
Cited
FR592288A
Cited
US1926995A
Cited
US1921296A
Cited
US2703676A
Cited
US2476266A
Cited
US2717147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |