Patent US3129246A successfully refreshed from Google Patents.
US3129246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3, 5-dinitrobenzoylureas
Assignee: Dow Chemical Co
•
Filing: 1961-06-23
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Granted: 1964-04-14
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Expires: 1981-06-23
Abstract
No abstract record available.
Inventors
- 👤 Guy H Harris
- 👤 Patricia I Traylor
- 👤 Bryant C Fischback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:07
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/46; C07C275/48; C07C275/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
6 words
A COMPOUND CORRESPONDING TO THE FORMULA
References Cited (Backward Citations)
US2945062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |