US2797944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid seal
Assignee: Motors Liquidation Co
•
Filing: 1952-12-05
•
Granted: 1957-07-02
•
Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Ellwood F Riesing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:27
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3248
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB541336A
Cited
US2310607A
Cited
US2417390A
Cited
US2437901A
Cited
US2467210A
Cited
US2587405A
Cited
US2672359A
Cited
US2697623A
Cited
BE511895A
Cited
US2736586A
Cited
US2736584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |