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Patent US3073814A successfully refreshed from Google Patents.
US3073814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triiodobenzoic acid derivatives
Assignee: Mallinckrodt Chemical Works
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Filing: 1960-07-25
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Granted: 1963-01-15
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Philip E Wiegert
- 👤 Jr Robert D Rands
- 👤 Douglas W Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:09
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/377
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
TRISUBSTITUTED FORMAMIDINE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
TRISUBSTITUTED FORMAMIDINE OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |