US2665612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for producing internally toothed ring gears and the like
Assignee: Individual
•
Filing: 1951-04-26
•
Granted: 1954-01-12
•
Expires: 1971-04-26
Abstract
No abstract record available.
Inventors
- 👤 Nubling Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:44
CPC Classifications
B; B23; B23F; B23F23/00; B23F23/12; B23F23/1237; B23F23/1262; B23F15/00; B23F15/08; B23F23/02; B23F23/06; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/105883; Y10T409/10636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1633051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |