US2883244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing devices
Assignee: ELIZABETH ALMA PAULINE BERGER
•
Filing: 1954-06-02
•
Granted: 1959-04-21
•
Expires: 1974-06-02
Abstract
No abstract record available.
Inventors
- 👤 Berger Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:37
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/306; F16C29/00; F16C29/04; F16C33/38; F16C33/40; F16C33/42; F16C33/422; F16C33/427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US644608A
Cited
US1228312A
Cited
US1427225A
Cited
US2422774A
Cited
US2448688A
Cited
FR1002720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |