US2477582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding system
Assignee: Raytheon Co
•
Filing: 1946-03-13
•
Granted: 1949-08-02
•
Expires: 1966-03-13
Abstract
No abstract record available.
Inventors
- 👤 John W Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:02
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0737; B23K11/00; B23K11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1654563A
Cited
US1916013A
Cited
US1857060A
Cited
US1780297A
Cited
US2231317A
Cited
US2286211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |