US1661245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing composition
Assignee: General Motors Research Corp
•
Filing: 1923-05-22
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Granted: 1928-03-06
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Expires: 1943-05-22
Abstract
No abstract record available.
Inventors
- 👤 Harry M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:40
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/10; B22F3/11; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49709; Y10T428/00; Y10T428/12; Y10T428/12486
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) | 1931-03-06 | 1931-09-05 | 1932-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-06 | 1935-09-05 | 1936-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-06 | 1939-09-05 | 1940-03-06 | $7700.00 | Window Closed / Lapsed |