US2830858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid seal
Assignee: Motors Liquidation Co
•
Filing: 1955-07-01
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Granted: 1958-04-15
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Expires: 1975-07-01
Abstract
No abstract record available.
Inventors
- 👤 Cletus L Moorman
- 👤 Ellwood F Riesing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:33
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/784; F16C33/7843; F16C33/7853; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3268; F16J15/3276
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |