US3036198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric welding system
Assignee: JOSEPH F GRIMLAND
•
Filing: 1959-02-12
•
Granted: 1962-05-22
•
Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Grimland
- 👤 Charles J Grimland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:03
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; B23K11/0093
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1296780A
Cited
US1465241A
Cited
US2033851A
Cited
US2045523A
Cited
US2300700A
Cited
US2272968A
Cited
US2810062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |