Patent US2272185A successfully refreshed from Google Patents.
Patent US2497758A successfully refreshed from Google Patents.
US2497758A
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Lubricating fitting
Assignee: Stewart Warner Corp
•
Filing: 1945-09-19
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Granted: 1950-02-14
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Expires: 1965-09-19
Abstract
No abstract record available.
Inventors
- 👤 Campbell Thomas Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:10
CPC Classifications
F; F16; F16N; F16N21/00; F16N21/02; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/044; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/8593; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE11371C
Cited
DE188553C
Cited
US2171590A
Cited
US1216919A
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US2017978A
Cited
US2232359A
Cited
US2217739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |