US3396977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease sealed bearings
Assignee: Koyo Seiko Co Ltd
•
Filing: 1966-07-19
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Granted: 1968-08-13
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Expires: 1986-07-19
Abstract
No abstract record available.
Inventors
- 👤 Iguchi Zin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:52
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/784; F16C33/7843; F16C33/7853; F16C33/30; F16C33/66; F16C33/6603; F16C33/6607; F16C19/00; F16C19/02; F16C19/04; F16C19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |