US2498256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittently operated vacuum horn
Assignee: Hyster Co
•
Filing: 1945-07-24
•
Granted: 1950-02-21
•
Expires: 1965-07-24
Abstract
No abstract record available.
Inventors
- 👤 Henry N Dimick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:26
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7833
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1046164A
Cited
US1419435A
Cited
US1786214A
Cited
US1888684A
Cited
US1943671A
Cited
US2038847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |