Patent US2845524A successfully refreshed from Google Patents.
US2845524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1955-11-30
•
Granted: 1958-07-29
•
Expires: 1975-11-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred J Morley
- 👤 Manno Louis
- 👤 Dixon Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:28
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)
US2289938A
Cited
US2428849A
Cited
US2550495A
Cited
US2673278A
Cited
US2510415A
Cited
US2510205A
Cited
US2510207A
Cited
US2583665A
Cited
GB713507A
Cited
US2717948A
Cited
US2776361A
Cited
US2806127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |