US2607174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of grinding eyeglass lenses
Assignee: Super Cut Inc
•
Filing: 1949-11-25
•
Granted: 1952-08-19
•
Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 Lanius Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:18
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/01; B24B13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2226506A
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US2309819A
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US2409363A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |