Patent US3039627A successfully refreshed from Google Patents.
US3039627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanisms for dumping hot-metal cars
Assignee: MH Treadwell Co Inc
•
Filing: 1959-04-22
•
Granted: 1962-06-19
•
Expires: 1979-04-22
Abstract
No abstract record available.
Inventors
- 👤 Paul L Sayre
- 👤 Robert W Dieckman
- 👤 Kleinman Mitchel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:49
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/06; B; B22; B22D; B22D41/00; B22D41/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US602614A
Cited
US761319A
Cited
US771487A
Cited
GB190804159A
Cited
US1084049A
Cited
US1266828A
Cited
US1954280A
Cited
CH158684A
Cited
US2151393A
Cited
US2599158A
Cited
US2722323A
Cited
US2842354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |