US2585352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens mounting for spectacles and eyeglasses
Assignee: Individual
•
Filing: 1950-04-11
•
Granted: 1952-02-12
•
Expires: 1970-04-11
Abstract
No abstract record available.
Inventors
- 👤 Allan M Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:21
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR453811A
Cited
CH78438A
Cited
US1825503A
Cited
US2198852A
Cited
US2384867A
Cited
US2389742A
Cited
US2450711A
Cited
GB623706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |