US1338462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing rings, especially track-rings for ball and roller bearings
Assignee: Individual
•
Filing: 1919-10-23
•
Granted: 1920-04-27
•
Expires: 1939-10-23
Abstract
No abstract record available.
Inventors
- 👤 Rydbeck Patrik Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:13
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/04; B21J; B21J13/00; B21J13/02; B21J13/025; 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) | 1923-04-27 | 1923-10-27 | 1924-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-04-27 | 1927-10-27 | 1928-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-04-27 | 1931-10-27 | 1932-04-27 | $7700.00 | Window Closed / Lapsed |