Patent US2152347A successfully refreshed from Google Patents.
Patent US3250580A successfully refreshed from Google Patents.
US3250580A
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Seal for grease-lubricated antifriction bearings
Assignee: Individual
•
Filing: 1963-10-15
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Granted: 1966-05-10
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Expires: 1983-10-15
Abstract
No abstract record available.
Inventors
- 👤 Sikora Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:28
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6603; F16C33/72; F16C33/76; F16C33/78; F16C33/7886; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2380/00; F16C2380/26
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |