Patent US2294617A successfully refreshed from Google Patents.
US910434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electric welding.
Assignee: ELECTRIC WELDING PRODUCTS Co
•
Filing: 1907-06-11
•
Granted: 1909-01-19
•
Expires: 1927-06-11
Abstract
No abstract record available.
Inventors
- 👤 Charles E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:09
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/16; B23K11/20; Y; Y10; Y10S; Y10S411/00; Y10S411/90; Y10S411/914; Y10S76/00; Y10S76/05
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) | 1912-01-19 | 1912-07-20 | 1913-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-01-19 | 1916-07-20 | 1917-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-01-19 | 1920-07-20 | 1921-01-19 | $7700.00 | Window Closed / Lapsed |