Patent US507157A successfully refreshed from Google Patents.
US507157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide-sheave for elevators
Assignee: —
•
Filing: —
•
Granted: 1893-10-24
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Expires: 1910-10-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:03
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/28; B66D1/36; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4402; B65H75/4405; B65H75/4407
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) | 1896-10-23 | 1897-04-24 | 1897-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-10-24 | 1901-04-25 | 1901-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-10-24 | 1905-04-25 | 1905-10-25 | $7700.00 | Window Closed / Lapsed |