US3372978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous material carrying a deposit of a cross-linked polymer
Assignee: United States Department of Agriculture
•
Filing: 1964-05-28
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Granted: 1968-03-12
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Expires: 1984-05-28
Abstract
No abstract record available.
Inventors
- 👤 Robert E Whitfield
- 👤 Alien G Pittman
- 👤 William L Wasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:01
CPC Classifications
D; D06; D06M; D06M23/00; D06M13/00; D06M13/10; D06M13/184; D06M13/192; D06M13/322; D06M13/325; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/263; D06M15/267; D06M15/273; D06M15/37; D06M15/39; D06M15/507; D06M15/53; D06M15/564; D06M15/59; D06M15/61; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2352; Y10T442/2369; Y10T442/2385
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2678286A
Cited
US2678287A
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US2780608A
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US2842509A
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US2890097A
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US3100674A
Cited
US3078138A
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US3084019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |