US3446209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for facilitating self-introduction of medicinal drops in eyes
Assignee: Individual
•
Filing: 1966-04-07
•
Granted: 1969-05-27
•
Expires: 1986-04-07
Abstract
No abstract record available.
Inventors
- 👤 August Macha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:16
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/0008; A61F9/0026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US772028A
Cited
US1437435A
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US2482431A
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US2475522A
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US2898911A
Cited
US3058466A
Cited
US3016898A
Cited
US3252747A
Cited
US3279466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |