Patent US2869480A successfully refreshed from Google Patents.
US2869480A
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US
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Operating mechanism for closure member of a discharge outlet assembly
Assignee: Enterprise Railway Equipment Co
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Filing: 1954-01-04
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Granted: 1959-01-20
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Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 William F Batho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:42
CPC Classifications
E; E03; E03D; E03D3/00; E03D3/02; E03D3/04; B; B61; B61D; B61D7/00; B61D7/14; B61D7/16; B61D7/20; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1625568A
Cited
US2306148A
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US2630768A
Cited
US2628574A
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US2628575A
Cited
US2789736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |