US2739852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing
Assignee: NAT U S RADIATOR CORP
•
Filing: 1952-03-21
•
Granted: 1956-03-27
•
Expires: 1972-03-21
Abstract
No abstract record available.
Inventors
- 👤 Marion I Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:55
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US791086A
Cited
US769331A
Cited
US1214158A
Cited
US2073707A
Cited
US2233104A
Cited
US2225623A
Cited
US2270392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |