US1156285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal machine.
Assignee: De Laval Separator Co
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Filing: 1914-03-02
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Granted: 1915-10-12
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Expires: 1934-03-02
Abstract
No abstract record available.
Inventors
- 👤 Selden H Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; F; F16; F16H; F16H7/00; F16H7/08; F16H2007/0802; F16H2007/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1918-10-11 | 1919-04-12 | 1919-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-10-11 | 1923-04-12 | 1923-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-10-11 | 1927-04-12 | 1927-10-12 | $7700.00 | Window Closed / Lapsed |