US3470170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Difluoraminated urea derivatives
Assignee: United States Department of the Navy
•
Filing: 1967-03-10
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Granted: 1969-09-30
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Expires: 1987-03-10
Abstract
No abstract record available.
Inventors
- 👤 Andrew Harper Dinwoodie
- 👤 Godfrey Fort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:19
CPC Classifications
C; C06; C06B; C06B43/00; C06B25/00; C06B25/34; C07; C07C; C07C275/00; C07C275/04; C07C275/06; C07C275/14; C07D; C07D273/00; C07D273/02; C07D273/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3097239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |