US1975939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld trimming machine
Assignee: Individual
•
Filing: 1933-12-20
•
Granted: 1934-10-09
•
Expires: 1953-12-20
Abstract
No abstract record available.
Inventors
- 👤 Carl C Grotnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:21
CPC Classifications
B; B23; B23K; B23K37/00; B23K37/08; Y; Y10; Y10S; Y10S83/00; Y10S83/914; Y10T; Y10T407/00; Y10T407/19; Y10T407/1902; Y10T407/1952; Y10T407/1962; Y10T407/1964; Y10T407/1966; Y10T409/00; Y10T409/30; Y10T409/3042; Y10T409/304256; Y10T409/30784; Y10T409/307952; Y10T409/308344
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) | 1937-10-08 | 1938-04-09 | 1938-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-08 | 1942-04-09 | 1942-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-08 | 1946-04-09 | 1946-10-09 | $7700.00 | Window Closed / Lapsed |