Patent US3216165A successfully refreshed from Google Patents.
US3216165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nailable metal floor structure for railway cars
Assignee: Pullman Standard Inc
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Filing: 1961-10-25
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Granted: 1965-11-09
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Expires: 1981-10-25
Abstract
No abstract record available.
Inventors
- 👤 William R Shaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:57
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA613896A
Cited
US2147965A
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US2250253A
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US2457086A
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US2410191A
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US2454604A
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US2910016A
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US2852112A
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US2900055A
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US3026821A
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US3102613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |