Patent US3204579A successfully refreshed from Google Patents.
US3204579A
Expired / Lapsed
US
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Railcar
Assignee: Fruehauf Corp
•
Filing: 1963-09-30
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Granted: 1965-09-07
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Samuel P Burns
- 👤 Robert H Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:21
CPC Classifications
B; B61; B61D; B61D3/00; B61D3/04; B61D3/16; B61D3/18; B61D3/182; B61D3/184; B61D3/20; B61D45/00; B61D45/001; B61D45/004; B61D45/005; B61D45/008; B61D47/00; B61D47/005; B62; B62D; B62D25/00; B62D25/20; B62D25/2054
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |