US3020552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunbathing glasses
Assignee: Individual
•
Filing: 1959-11-30
•
Granted: 1962-02-13
•
Expires: 1979-11-30
Abstract
No abstract record available.
Inventors
- 👤 Audrey M Coon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:47
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/16; A; A61; A61F; A61F9/00; A61F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US207624A
Cited
US1401118A
Cited
US2089233A
Cited
US2283752A
Cited
US2390523A
Cited
FR1017169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |