US3004985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercury proto-and hematoporphyrins
Assignee: Daiichi Pharmaceutical Co Ltd
•
Filing: 1957-05-07
•
Granted: 1961-10-17
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Expires: 1977-05-07
Abstract
No abstract record available.
Inventors
- 👤 Obika Misao
- 👤 Sasaki Morie
- 👤 Tanaka Katutaro
- 👤 Iijima Noboru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:05
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/22; C07F; C07F3/00; C07F3/10; C07F3/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MERCURY HEMATOPORPHYRIN AND ITS DIALKALI SALTS OF THE FOLLOWING CONSTITUTIONAL FORMULA:
Claim 2
Dependent Claim
12 words
A MERCURY HEMATOPORPHYRIN AND ITS DIALKALI SALTS OF THE FOLLOWING CONSTITUTIONAL FORMULA:
References Cited (Backward Citations)
US2274101A
Cited
US2476358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |