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US2648255A
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US
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Spectacle retaining device
Assignee: Individual
•
Filing: 1949-03-30
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Granted: 1953-08-11
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Expires: 1969-03-30
Abstract
No abstract record available.
Inventors
- 👤 Eleanor E Pendleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:39
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/003; G02C11/00; 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)
DE376978C
Cited
US1126855A
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US1549672A
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US1819738A
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US1894888A
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US1973648A
Cited
US2023523A
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US2475634A
Cited
US2499140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |