US2582554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunglasses
Assignee: Individual
•
Filing: 1947-08-09
•
Granted: 1952-01-15
•
Expires: 1967-08-09
Abstract
No abstract record available.
Inventors
- 👤 William A Mendelsohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
G; G02; G02C; G02C9/00; G02C9/02; G02C5/00; G02C5/02; G02C7/00; G02C7/10; G02C7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US588642A
Cited
US1238396A
Cited
GB200635A
Cited
US2126697A
Cited
US1715612A
Cited
GB305513A
Cited
FR645124A
Cited
GB390685A
Cited
US2060127A
Cited
US2265704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |