US2443422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Goggles
Assignee: Individual
•
Filing: 1945-07-03
•
Granted: 1948-06-15
•
Expires: 1965-07-03
Abstract
No abstract record available.
Inventors
- 👤 Julius E Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:08
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/02; G02C5/08; G02C5/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US583590A
Cited
US1070334A
Cited
US1697030A
Cited
US1741536A
Cited
US1805396A
Cited
US1887871A
Cited
US2106615A
Cited
US2179286A
Cited
US2397243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |