US1230357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling energy delivered to welding-electrodes.
Assignee: Individual
•
Filing: 1915-11-17
•
Granted: 1917-06-19
•
Expires: 1935-11-17
Abstract
No abstract record available.
Inventors
- 👤 Harry R Woodrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:00
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/25; B23K11/252; Y; Y10; Y10S; Y10S65/00; Y10S65/04
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) | 1920-06-18 | 1920-12-18 | 1921-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-18 | 1924-12-18 | 1925-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-18 | 1928-12-18 | 1929-06-19 | $7700.00 | Window Closed / Lapsed |