US2850338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed bearing
Assignee: Individual
•
Filing: 1955-12-06
•
Granted: 1958-09-02
•
Expires: 1975-12-06
Abstract
No abstract record available.
Inventors
- 👤 John F Kopczynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:31
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/54; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/40; B24; B24B; B24B47/00; B24B47/10; B24B47/12; F16C35/00; F16C35/08; F16C35/12; F16C2322/00; F16C2322/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US616396A
Cited
US782024A
Cited
FR417813A
Cited
GB183844A
Cited
US1827968A
Cited
US1748174A
Cited
US2581593A
Cited
US2676276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |