US2468807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-cooled gas blanketed arcwelding torch
Assignee: Linde Air Products Co
•
Filing: 1946-05-09
•
Granted: 1949-05-03
•
Expires: 1966-05-09
Abstract
No abstract record available.
Inventors
- 👤 Harry T Herbst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:32
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1553543A
Cited
US1946305A
Cited
US1869328A
Cited
US2063467A
Cited
US2314628A
Cited
US2376265A
Cited
US2400285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |