US764240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrohydraulic valve mechanism for elevators.
Assignee: Individual
•
Filing: 1902-04-26
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Granted: 1904-07-05
•
Expires: 1922-04-26
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Hinman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:41
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30505
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) | 1907-07-05 | 1908-01-04 | 1908-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-07-05 | 1912-01-04 | 1912-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-07-05 | 1916-01-04 | 1916-07-05 | $7700.00 | Window Closed / Lapsed |