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US2538830A
Expired / Lapsed
US
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Temple for spectacle frames
Assignee: NEWPORT OPTICAL Manufacturing Co Inc
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Filing: 1949-11-25
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Granted: 1951-01-23
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Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Collinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:12
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1630964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |