US3410226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad car diaphragm
Assignee: Goodrich Corp
•
Filing: 1966-06-23
•
Granted: 1968-11-12
•
Expires: 1986-06-23
Abstract
No abstract record available.
Inventors
- 👤 Carroll P Krupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:11
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/20; B61D17/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US455427A
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FR709709A
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US1943370A
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US2128221A
Cited
US2124264A
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US2188632A
Cited
US2578140A
Cited
US2643617A
Cited
US2991509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |