US2823967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing
Assignee: PARKERSBURG AETNA CORP
•
Filing: 1954-11-29
•
Granted: 1958-02-18
•
Expires: 1974-11-29
Abstract
No abstract record available.
Inventors
- 👤 Richard F Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:17
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR962374A
Cited
GB523854A
Cited
US2310607A
Cited
US2544582A
Cited
US2467099A
Cited
US2647808A
Cited
FR1056187A
Cited
GB706876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |