US2998635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making roller bearings
Assignee: OSCAR C RIXSON CO
•
Filing: 1959-01-22
•
Granted: 1961-09-05
•
Expires: 1979-01-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Silvius Burritt
- 👤 David H Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:21
CPC Classifications
F; F16; F16C; F16C43/00; F16C43/04; F16C43/06; F16C43/08; F16C43/083; F16C29/00; F16C29/04; F16C33/00; F16C33/30; F16C33/46; F16C33/54; F16C33/542; F16C33/543; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49686; Y10T29/49687; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918
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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |