Patent US2515964A successfully refreshed from Google Patents.
US2515964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawbar carrier for draft riggings
Assignee: National Malleable and Steel Castings Co
•
Filing: 1944-11-01
•
Granted: 1950-07-18
•
Expires: 1964-11-01
Abstract
No abstract record available.
Inventors
- 👤 William J Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:20
CPC Classifications
B; B61; B61G; B61G7/00; B61G7/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1878032A
Cited
US1963066A
Cited
US1993712A
Cited
US2043090A
Cited
US1999652A
Cited
US2355524A
Cited
US2441626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |