US3490388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor latch strip for railway cars
Assignee: Unarco Industries LLC
•
Filing: 1966-11-25
•
Granted: 1970-01-20
•
Expires: 1986-11-25
Abstract
No abstract record available.
Inventors
- 👤 John S Lundvall
- 👤 Russell M Loomis
- 👤 Henry D Breen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:44
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/001; B61D17/00; B61D17/04; B61D17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1102773A
Cited
US1739829A
Cited
US1739893A
Cited
US3070042A
Cited
US3005419A
Cited
US3168055A
Cited
US3312182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |