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US2777489A
Expired / Lapsed
US
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Spectacle case
Assignee: Bausch and Lomb Inc
•
Filing: 1955-05-06
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Granted: 1957-01-15
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Expires: 1975-05-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond F E Stegeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:42
CPC Classifications
A; A45; A45C; A45C11/00; A45C11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US578299A
Cited
US2388444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |