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US3461856A
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Assignee: American Optical Corp
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Filing: 1965-10-23
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Granted: 1969-08-19
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Michael L Polanyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/1455; A61B5/14551; A61B5/14552; A61B5/1491; G; G01; G01N; G01N21/00; G01N21/84; G01N21/85; G01N21/8507; A61B2562/00; A61B2562/14; A61B2562/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123066A
Cited
US3068793A
Cited
US3068742A
Cited
US3162190A
Cited
US3319622A
Cited
US3339542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |