Patent US1603630A successfully refreshed from Google Patents.
Patent US2739376A successfully refreshed from Google Patents.
US2739376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making draft gear housing
Assignee: AO Smith Corp
•
Filing: 1952-06-14
•
Granted: 1956-03-27
•
Expires: 1972-06-14
Abstract
No abstract record available.
Inventors
- 👤 George B Peet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:23
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1104088A
Cited
US1245596A
Cited
US1902222A
Cited
US2078195A
Cited
US2112231A
Cited
US2368695A
Cited
US2162510A
Cited
US2355792A
Cited
US2406059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |