Patent US3402231A successfully refreshed from Google Patents.
US3402231A
Expired / Lapsed
US
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Process for preparing synthetic fibers for paper products
Assignee: Monsanto Co
•
Filing: 1964-05-21
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Granted: 1968-09-17
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Expires: 1984-05-21
Abstract
No abstract record available.
Inventors
- 👤 George D Bynum
- 👤 Gerd R Baur
- 👤 Jr Byrd T Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:49
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/20; D21H5/205; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/25; B29C48/30; B29C48/345; D01; D01D; D01D4/00; D01D4/02; D01D5/00; D01D5/08; D01D5/098; D01D5/0985; D01D5/11; D01D5/24; D01D5/247; D01D5/42; D01D5/423; D01F; D01F6/00; D01F6/02; D01F6/18; D01F6/28; D01F6/38; D01F6/44; D01F6/54; D21H13/00; D21H13/10; D21H13/12; D21H13/18; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |