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US3403174A
Expired / Lapsed
US
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Methylol derivatives of halo-cyanoacetamides and their application to cellulosic materials
Assignee: United States Department of Agriculture
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Filing: 1967-06-01
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Granted: 1968-09-24
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Expires: 1987-06-01
Abstract
No abstract record available.
Inventors
- 👤 Leon H Chance
- 👤 Ethel K Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:21
CPC Classifications
C; C07; C07C; C07C255/00; D; D06; D06M; D06M13/00; D06M13/322; D06M13/345; D06M13/402; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3092661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |