US3464987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,2-dihydro-1-hydroxy-2-imino-6-(lower alkyl)pyrimidines
Assignee: Pharmacia and Upjohn Co
•
Filing: 1966-02-21
•
Granted: 1969-09-02
•
Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Ursprung
- 👤 William C Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:30
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/47; C07D239/48; C07D239/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1915334A
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US2075359A
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US2425320A
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US2606155A
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US2487569A
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US3087910A
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US3149104A
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US3192216A
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US3202650A
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US3270015A
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US3270014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |