Patent US2762331A successfully refreshed from Google Patents.
US2762331A
Expired / Lapsed
US
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Oil spray devices for electrostatic oiling machines
Assignee: United States Steel Corp
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Filing: 1952-06-18
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Granted: 1956-09-11
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Expires: 1972-06-18
Abstract
No abstract record available.
Inventors
- 👤 William J Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:29
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/08; B05B5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702784A
Cited
US2281558A
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US2346278A
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US2429862A
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US2437606A
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US2562358A
Cited
US2551538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |