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 00:40
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/10
Claims Analysis
Total Claims: 0
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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 |