Patent US1162290A successfully refreshed from Google Patents.
Patent US1971083A successfully refreshed from Google Patents.
US1971083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of ball races and the like
Assignee: Individual
•
Filing: 1932-06-01
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Granted: 1934-08-21
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Expires: 1952-06-01
Abstract
No abstract record available.
Inventors
- 👤 Schlaa Friedrich Im
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:59
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/04; B21J; B21J1/00; B21J1/02; B21J1/025; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49689
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) | 1937-08-20 | 1938-02-19 | 1938-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-20 | 1942-02-19 | 1942-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-20 | 1946-02-19 | 1946-08-21 | $7700.00 | Window Closed / Lapsed |