US3438109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a bearing
Assignee: Individual
•
Filing: 1966-10-18
•
Granted: 1969-04-15
•
Expires: 1986-10-18
Abstract
No abstract record available.
Inventors
- 👤 Raoul-Henri Erard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:45
CPC Classifications
G; G04; G04B; G04B31/00; G04B31/004; G04B31/008; G04B31/0082; G04B31/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49579; Y10T29/49636; Y10T29/49643; Y10T29/49645; Y10T29/49696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2459598A
Cited
US2689380A
Cited
CH293487A
Cited
CH311292A
Cited
GB735376A
Cited
CH339136A
Cited
FR1195748A
Cited
CH343930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |