US3067426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welder's helmet and shield
Assignee: Individual
•
Filing: 1961-05-02
•
Granted: 1962-12-11
•
Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Tompkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:51
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/225; A61; A61F; A61F9/00; A61F9/04; A61F9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2926357A
Cited
US2973522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |