US2479754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable lens holding means for harmonizing eyeglass frames
Assignee: Individual
•
Filing: 1946-06-11
•
Granted: 1949-08-23
•
Expires: 1966-06-11
Abstract
No abstract record available.
Inventors
- 👤 Shirley W Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:46
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/06; G02C1/08; G02C2200/00; G02C2200/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE209325C
Cited
US631533A
Cited
CH103256A
Cited
US1805529A
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US1988646A
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GB433650A
Cited
US2362002A
Cited
US2444498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |