US2690137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating mechanism for closure members of discharge outlet assemblies and method of assembling the same
Assignee: Enterprise Railway Equipment Co
•
Filing: 1950-03-20
•
Granted: 1954-09-28
•
Expires: 1970-03-20
Abstract
No abstract record available.
Inventors
- 👤 William F Batho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:12
CPC Classifications
E; E03; E03D; E03D3/00; E03D3/02; E03D3/04; B; B61; B61D; B61D7/00; B61D7/14; B61D7/16; B61D7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1119428A
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US1924419A
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US2142236A
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US2492102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |