US3525565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical status testing means and method for dynamically determining lens accommodation
Assignee: A S LABORATORIES Inc A CORP OF
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Filing: 1968-01-29
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Granted: 1970-08-25
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Expires: 1988-01-29
Abstract
No abstract record available.
Inventors
- 👤 William D O'neill
- 👤 Lawrence Stark
- 👤 Anne Troelstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2107305A
Cited
US2385503A
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US2445787A
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US2573464A
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US2964644A
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US3036568A
Cited
US3379885A
Cited
US3462604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |