US2472803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding apparatus
Assignee: Individual
•
Filing: 1946-04-17
•
Granted: 1949-06-14
•
Expires: 1966-04-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Beyer
- 👤 Clarence E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:26
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1298590A
Cited
US1502489A
Cited
US1508690A
Cited
US1580020A
Cited
US1676985A
Cited
US1667585A
Cited
US1932042A
Cited
US1933340A
Cited
US1956406A
Cited
US2405663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |