Patent US2619239A successfully refreshed from Google Patents.
US2619239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator
Assignee: Individual
•
Filing: 1947-07-14
•
Granted: 1952-11-25
•
Expires: 1967-07-14
Abstract
No abstract record available.
Inventors
- 👤 Sr Mark W Hild
- 👤 Jr Mark W Hild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:35
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1287984A
Cited
US1782410A
Cited
US1859874A
Cited
US1834385A
Cited
US1870046A
Cited
GB353900A
Cited
US1851262A
Cited
US2069886A
Cited
GB412319A
Cited
US2089047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |