US2197499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller bearing
Assignee: HEINZE DEV Co
•
Filing: 1938-01-19
•
Granted: 1940-04-16
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Expires: 1958-01-19
Abstract
No abstract record available.
Inventors
- 👤 John O Heinze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:09
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/49; B; B61; B61F; B61F15/00; B61F15/12; B61F15/16; F16C19/54; F16C33/00; F16C33/30; F16C33/34; F16C33/36; F16C2326/00; F16C2326/10
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) | 1943-04-16 | 1943-10-16 | 1944-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-16 | 1947-10-16 | 1948-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-16 | 1951-10-16 | 1952-04-16 | $7700.00 | Window Closed / Lapsed |