Patent US3450814A successfully refreshed from Google Patents.
US3450814A
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US
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Ophthalmic compositions containing alginic acid salts of pilocarpine,atropine and physostigmine
Assignee: Cooper Laboratories Inc
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Filing: 1964-07-15
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Granted: 1969-06-17
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Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Bechtold
- 👤 Vincent J Rizzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
C; C07; C07D; C07D451/00; C07D451/02; C07D451/04; C07D451/06; C07D451/10; A; A61; A61K; A61K47/00; A61K47/50; A61K47/51; A61K47/56; A61K47/61; A61K9/00; A61K9/0012; A61K9/0048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA604255A
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US3073831A
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US3169971A
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US2547653A
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US2703777A
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US2906665A
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US2962499A
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US3049548A
Cited
US3161654A
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US3133083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |