US2872843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test lens holder for eyeglass frames
Assignee: KONO Manufacturing CO Inc
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Filing: 1955-05-02
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Granted: 1959-02-10
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Expires: 1975-05-02
Abstract
No abstract record available.
Inventors
- 👤 Kono Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:45
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02; G02C7/08; A; A61; A61B; A61B3/00; A61B3/02; A61B3/028; A61B3/04; G02C13/00; G02C13/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |