US2249723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding noncorrosive metal member
Assignee: Individual
•
Filing: 1938-05-16
•
Granted: 1941-07-15
•
Expires: 1958-05-16
Abstract
No abstract record available.
Inventors
- 👤 Jr John B Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:56
CPC Classifications
B; B23; B23K; B23K33/00; B23K33/004; B23K5/00; B23K5/12; Y; Y10; Y10S; Y10S29/00; Y10S29/038; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T428/00; Y10T428/12; Y10T428/12493
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-07-14 | 1945-01-13 | 1945-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-14 | 1949-01-13 | 1949-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-14 | 1953-01-13 | 1953-07-15 | $7700.00 | Window Closed / Lapsed |