US2445801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electric resistance welding a laminated sheet metal structure
Assignee: Nitralloy Corp
•
Filing: 1942-08-06
•
Granted: 1948-07-27
•
Expires: 1962-08-06
Abstract
No abstract record available.
Inventors
- 👤 Partiot Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:05
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T428/00; Y10T428/12; Y10T428/12347
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US584120A
Cited
US952877A
Cited
FR459755A
Cited
US1502437A
Cited
US1509384A
Cited
US1842774A
Cited
US1933484A
Cited
US1995484A
Cited
US1995368A
Cited
GB429459A
Cited
US2137909A
Cited
US2212481A
Cited
US2233526A
Cited
US2284504A
Cited
US2304976A
Cited
US2324808A
Cited
US2268493A
Cited
US2324435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-27 | 1952-01-26 | 1952-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-27 | 1956-01-26 | 1956-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-27 | 1960-01-26 | 1960-07-27 | $7700.00 | Window Closed / Lapsed |