US2503533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making bearings
Assignee: Individual
•
Filing: 1945-09-15
•
Granted: 1950-04-11
•
Expires: 1965-09-15
Abstract
No abstract record available.
Inventors
- 👤 John C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:57
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; B; B23; B23P; B23P15/00; B23P15/003; F16C2220/00; F16C2220/02; F16C2223/00; F16C2223/02; F16C2226/00; F16C2226/30; F16C2226/32; F16C2226/34; F16C2226/36; Y; Y10; Y10S; Y10S29/00; Y10S29/029; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1440559A
Cited
US1333337A
Cited
US1516089A
Cited
US1783438A
Cited
US1994461A
Cited
US2364503A
Cited
US2294886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |