US2768034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical bearing
Assignee: Individual
•
Filing: 1953-02-19
•
Granted: 1956-10-23
•
Expires: 1973-02-19
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:15
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C33/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1345534A
Cited
US1971169A
Cited
US1976916A
Cited
US2118855A
Cited
US2236370A
Cited
GB561165A
Cited
US2444874A
Cited
US2459598A
Cited
US2525747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |