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Patent US469361A successfully refreshed from Google Patents.
US469361A
Expired / Lapsed
US
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Electric elevator
Assignee: —
•
Filing: —
•
Granted: 1892-02-23
•
Expires: 1909-02-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:31
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/292; H02P7/293
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) | 1895-02-22 | 1895-08-24 | 1896-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1899-02-22 | 1899-08-24 | 1900-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1903-02-23 | 1903-08-25 | 1904-02-24 | $7700.00 | Window Closed / Lapsed |