US3384903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eye protective spectacles
Assignee: CESCO SAFETY PRODUCTS Inc
•
Filing: 1965-12-20
•
Granted: 1968-05-28
•
Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert Malcom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:01
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/16; A; A61; A61F; A61F9/00; A61F9/02; G02C11/00; G02C11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA651597A
Cited
GB398881A
Cited
US2224784A
Cited
GB600726A
Cited
US2472731A
Cited
US2506956A
Cited
US2628352A
Cited
US2590397A
Cited
US2824309A
Cited
US3204252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |