US2819650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle holder
Assignee: Individual
•
Filing: 1952-03-22
•
Granted: 1958-01-14
•
Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Suren M Seron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:11
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/003; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1371; Y10T24/31; Y10T24/314; Y10T24/316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1666017A
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US1782057A
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US1897090A
Cited
US1894888A
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US2249572A
Cited
US2023523A
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US2264351A
Cited
US2499140A
Cited
US2541493A
Cited
US2649020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |