US2569715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welder's hood
Assignee: Individual
•
Filing: 1949-04-25
•
Granted: 1951-10-02
•
Expires: 1969-04-25
Abstract
No abstract record available.
Inventors
- 👤 Howard H Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/04; A61F9/06; A61F9/061; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE537469C
Cited
US2190074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |