US2921533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic and hydrostatic bearing
Assignee: Worthington Corp
•
Filing: 1956-03-30
•
Granted: 1960-01-19
•
Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 John G Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:41
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/04; F04D29/046; F04D29/047; F16; F16C; F16C17/00; F16C17/02; F16C32/00; F16C32/06; F16C32/0629; F16C32/064
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2704516A
Cited
US846795A
Cited
DE425736C
Cited
US1721738A
Cited
US1942101A
Cited
US2632395A
Cited
US2669187A
Cited
US2696410A
Cited
US2684034A
Cited
FR1088917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |