Patent US2036922A successfully refreshed from Google Patents.
US1032285A
Expired / Lapsed
US
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Centrifugal machine.
Assignee: Individual
•
Filing: 1911-03-09
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Granted: 1912-07-09
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Expires: 1931-03-09
Abstract
No abstract record available.
Inventors
- 👤 Ernst Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:44
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/005; B04B1/00; B04B1/20; B04B2001/2075
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) | 1915-07-09 | 1916-01-08 | 1916-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-07-09 | 1920-01-08 | 1920-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-07-09 | 1924-01-08 | 1924-07-09 | $7700.00 | Window Closed / Lapsed |