US2649020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle band
Assignee: Individual
•
Filing: 1950-04-26
•
Granted: 1953-08-18
•
Expires: 1970-04-26
Abstract
No abstract record available.
Inventors
- 👤 Ellen R Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:03
CPC Classifications
G; G02; G02C; G02C11/00; G02C3/00; G02C3/003; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1371; Y10T24/1397
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1819738A
Cited
US1973648A
Cited
US2249572A
Cited
US2023523A
Cited
US2221801A
Cited
US2499140A
Cited
US2494750A
Cited
US2481946A
Cited
US2541493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |