US1353958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yielding upper bearing for centrifugal separators
Assignee: STANDARD SEPARATOR Co
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Filing: 1916-11-18
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Granted: 1920-09-28
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Expires: 1936-11-18
Abstract
No abstract record available.
Inventors
- 👤 George W Hofmann
- 👤 William R Muray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
B; B04; B04B; B04B9/00; B04B9/12
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) | 1923-09-28 | 1924-03-29 | 1924-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-09-28 | 1928-03-29 | 1928-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-09-28 | 1932-03-29 | 1932-09-28 | $7700.00 | Window Closed / Lapsed |