US2031571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed bearing
Assignee: SKF AB
•
Filing: 1935-07-06
•
Granted: 1936-02-18
•
Expires: 1955-07-06
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Karl Gustav Valentin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:45
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/74; F16C33/76; F16C33/78; F16C33/7816; F16C33/783; F16C33/784; F16C33/7843; F16C33/7846; F16C33/785; F16C43/00; F16C43/04; F16C43/045; F28; F28D; F28D19/00; F28D19/04; F16C17/00; F16C17/02; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2300/00; F16C2300/02
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) | 1939-02-17 | 1939-08-19 | 1940-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-17 | 1943-08-19 | 1944-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-17 | 1947-08-19 | 1948-02-18 | $7700.00 | Window Closed / Lapsed |