US2677416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen and acetylene torch
Assignee: Smith Welding Equipment Corp
•
Filing: 1948-09-25
•
Granted: 1954-05-04
•
Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Smitb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |