Patent US2812344A successfully refreshed from Google Patents.
US2812344A
Expired / Lapsed
US
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Ferrous calcium citrate complex
Assignee: Ortho Pharmaceutical Corp
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Filing: 1956-02-13
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Granted: 1957-11-05
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Oroshnik William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:34
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/02; C07F15/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A FERROUS CALCIUM CITRATE COMPLEX HAVING THE FORMULA
Claim 2
Dependent Claim
8 words
A FERROUS CALCIUM CITRATE COMPLEX HAVING THE FORMULA
References Cited (Backward Citations)
US2691666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |