US2584934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eye protection device
Assignee: American Optical Corp
•
Filing: 1947-01-17
•
Granted: 1952-02-05
•
Expires: 1967-01-17
Abstract
No abstract record available.
Inventors
- 👤 Edward M Splaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:54
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/026; A61F9/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190423603A
Cited
FR359601A
Cited
US1099404A
Cited
US1294524A
Cited
GB264280A
Cited
US2391349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |