US1808047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bearings
Assignee: Individual
•
Filing: 1928-10-15
•
Granted: 1931-06-02
•
Expires: 1948-10-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Jesse T Littleton
- 👤 Raymond W Lillie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:51
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/08; B22D19/085; Y; Y10; Y10S; Y10S264/00; Y10S264/71; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677; Y10T29/49696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-06-01 | 1934-12-01 | 1935-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-01 | 1938-12-01 | 1939-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-01 | 1942-12-01 | 1943-06-02 | $7700.00 | Window Closed / Lapsed |