US2761955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical arc welding
Assignee: Gregory Industries Inc
•
Filing: 1952-03-12
•
Granted: 1956-09-04
•
Expires: 1972-03-12
Abstract
No abstract record available.
Inventors
- 👤 Roger W Sholle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:45
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/007
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US363320A
Cited
US2367257A
Cited
US2406474A
Cited
US2459047A
Cited
US2413189A
Cited
US2550495A
Cited
US2587195A
Cited
US2599751A
Cited
US2591926A
Cited
US2586140A
Cited
US2673278A
Cited
US2498241A
Cited
US2583665A
Cited
US2510620A
Cited
US2628302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |