US3553194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch phosphonates
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1967-12-28
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Granted: 1971-01-05
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Expires: 1987-12-28
Abstract
Abstract STARCH ETHER PHOSPHONATES PREPARED BY REACTING STARCH WITH PHOSPHONATING AGENTS, WHEREIN THE ORGANO GROUP BONDED DIRECTLY TO THE PHOSPHORUS ATOM IS A VINYL GROUP, AN ALKANE SUBSTITUTED WITH A VICINAL HALOHYDROXY GROUP, A VICINAL EPOXY GROUP OR AN OMEGA-HALO GROUP.
Inventors
- 👤 Frank Verbanac
- 👤 Kenneth B Moser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:52
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/08; C08B31/12; A; A23; A23L; A23L29/00; A23L29/20; A23L29/206; A23L29/212; A23L29/219; A61; A61K; A61K47/00; A61K47/30; A61K47/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |