Patent US2903307A successfully refreshed from Google Patents.
US2903307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two component bearing
Assignee: Individual
•
Filing: 1956-04-18
•
Granted: 1959-09-08
•
Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Roger W Peters
- 👤 Norris F Dow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:44
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/045; F16C19/00; F16C19/02; F16C19/04; F16C19/08; F16C31/00; F16C31/04
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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |