US3416880A
Expired / Lapsed
US
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Modification of cellulosic textiles with methylolated hydroxyalkyl carbamates
Assignee: United States Department of Agriculture
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Filing: 1967-02-10
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Granted: 1968-12-17
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Expires: 1987-02-10
Abstract
No abstract record available.
Inventors
- 👤 Russell M H Kullman
- 👤 Jr John G Frick
- 👤 Robert M Reinhard
- 👤 John D Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; B; B63; B63B; B63B19/00; B63B19/12; B63B19/24; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2627524A
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US2928812A
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US2774746A
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US2850407A
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US3144299A
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US3160469A
Cited
US3230030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |