Patent US3048450A successfully refreshed from Google Patents.
US3048450A
Expired / Lapsed
US
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Hopper car for granular materials
Assignee: General American Transportation Corp
•
Filing: 1959-06-22
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Granted: 1962-08-07
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Edmund R Aller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:52
CPC Classifications
B; B61; B61D; B61D7/00; B61D7/02; B61D5/00; B61D5/002; B61D5/004; B61D7/14; B61D7/16; B61D7/24; B61D7/26; B61D7/32; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/587; B65D90/62; B65D90/626
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2190727A
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US2393932A
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US2502741A
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US2650726A
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US2745563A
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US2844411A
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US2962325A
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US2926963A
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US2915338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |