Patent US4877271A successfully refreshed from Google Patents.
Patent US4224399A successfully refreshed from Google Patents.
Patent US4674142A successfully refreshed from Google Patents.
Patent US2799482A successfully refreshed from Google Patents.
Patent US2183452A successfully refreshed from Google Patents.
US350146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bell-alarm for elevator-cars
Assignee: —
•
Filing: —
•
Granted: 1886-10-05
•
Expires: 1903-10-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:38
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/34; B66C1/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1889-10-04 | 1890-04-05 | 1890-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1893-10-04 | 1894-04-05 | 1894-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1897-10-04 | 1898-04-05 | 1898-10-05 | $7700.00 | Window Closed / Lapsed |