Patent US2602679A successfully refreshed from Google Patents.
US2602679A
Expired / Lapsed
US
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Seal for stoker bearings
Assignee: AO Smith Corp
•
Filing: 1946-07-08
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Granted: 1952-07-08
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Expires: 1966-07-08
Abstract
No abstract record available.
Inventors
- 👤 Philip C Malmsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:15
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32975; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1066276A
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US1569751A
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US1760356A
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US1917674A
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US2100113A
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US2054581A
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US2080669A
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US2122085A
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US2251450A
Cited
US2441294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |