US2621946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal
Assignee: Individual
•
Filing: 1948-02-28
•
Granted: 1952-12-16
•
Expires: 1968-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jendrassik George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:17
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412; F16J15/342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US146750A
Cited
US387900A
Cited
GB189918104A
Cited
US866062A
Cited
US934289A
Cited
US1239132A
Cited
US1558925A
Cited
US1805155A
Cited
DE552859C
Cited
US2307346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |