US2016843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball bearing center
Assignee: DELTA Manufacturing CO
•
Filing: 1934-11-07
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Granted: 1935-10-08
•
Expires: 1954-11-07
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Tantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:54
CPC Classifications
B; B23; B23B; B23B23/00; B23B23/02; B23B23/04; B23B2233/00; B23B2233/20; B23B2233/28; B23B2270/00; B23B2270/20; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2568
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) | 1938-10-07 | 1939-04-08 | 1939-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-10-07 | 1943-04-08 | 1943-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-10-07 | 1947-04-08 | 1947-10-08 | $7700.00 | Window Closed / Lapsed |