US2233206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing material
Assignee: Richardson Co
•
Filing: 1936-07-30
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Granted: 1941-02-25
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Expires: 1956-07-30
Abstract
No abstract record available.
Inventors
- 👤 Louis T Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:51
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/16; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5184; Y10T428/00; Y10T428/25; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3569
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) | 1944-02-25 | 1944-08-26 | 1945-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-25 | 1948-08-26 | 1949-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-25 | 1952-08-26 | 1953-02-25 | $7700.00 | Window Closed / Lapsed |