Patent US449411A successfully refreshed from Google Patents.
US449411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric alarm for shaft-bearings
Assignee: —
•
Filing: —
•
Granted: 1891-03-31
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Expires: 1908-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:56
CPC Classifications
F; F16; F16D; F16D66/00; F16D66/02; F16D66/021; F16D66/022; F16D66/023; F16D66/024; B; B63; B63H; B63H23/00; B63H23/32; B63H23/321; F16C; F16C17/00; F16C17/12; F16C17/24; F16C17/246; B63B; B63B71/00; F16C2326/00; F16C2326/30
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) | 1894-03-30 | 1894-09-29 | 1895-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-03-30 | 1898-09-29 | 1899-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-03-31 | 1902-09-30 | 1903-04-01 | $7700.00 | Window Closed / Lapsed |