US3484815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car handbrake construction
Assignee: MAGOR RAILCAR DIVISION FRUEHAU
•
Filing: 1968-05-09
•
Granted: 1969-12-16
•
Expires: 1988-05-09
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Tearpock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:03
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/02; B61H13/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/2048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1130955A
Cited
US1702777A
Cited
US1872113A
Cited
US1879975A
Cited
CH385910A
Cited
US3163128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |