US2625447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulley bearing seal
Assignee: National Plastics Inc
•
Filing: 1947-02-12
•
Granted: 1953-01-13
•
Expires: 1967-02-12
Abstract
No abstract record available.
Inventors
- 👤 Christopher Van Deventer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:47
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/44; F16J15/447; F16J15/4476; F16C; F16C33/00; F16C33/72; F16C33/74; F16H; F16H55/00; F16H55/32; F16H55/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US464795A
Cited
US1668497A
Cited
US1800700A
Cited
US2315301A
Cited
US2431446A
Cited
US2459290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |