Patent US2698194A successfully refreshed from Google Patents.
US2698194A
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Fluid and dust seal
Assignee: Allis Chalmers Corp
•
Filing: 1951-04-06
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Granted: 1954-12-28
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Expires: 1971-04-06
Abstract
No abstract record available.
Inventors
- 👤 George D Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:28
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/322; Y; Y10; Y10S; Y10S277/00; Y10S277/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB209265A
Cited
US1569370A
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US1781201A
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US2145928A
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US2185450A
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US2358536A
Cited
US2437900A
Cited
US2482029A
Cited
US2574062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |