Patent US3068061A successfully refreshed from Google Patents.
US3068061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorylated polyvinyl alcohol products and method of producing said products
Assignee: Monsanto Chemicals Ltd
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Filing: 1960-07-11
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Granted: 1962-12-11
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 John H Johnson
- 👤 Joseph H Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:54
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/14; D01F1/00; D01F1/02; D01F1/07; Y; Y10; Y10S; Y10S8/00; Y10S8/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A SHAPED, CONTINUOUS PRODUCT COMPRISING THE ACETAL OF PARTIALLY PHOSPHORYLATED POLYVINYL ALCOHOL AND A SATURATED ALIPHATIC, UNSUBSTITUTED CARBOXALDEHYDE OF FROM 1 TO 5 CARBON ATOMS, SAID ARTICLE BEING SUBSTANTIALLY WATER-INSOLUBNLE AND FLAME-RETARDANT.
Claim 2
Dependent Claim
32 words
A SHAPED, CONTINUOUS PRODUCT COMPRISING THE ACETAL OF PARTIALLY PHOSPHORYLATED POLYVINYL ALCOHOL AND A SATURATED ALIPHATIC, UNSUBSTITUTED CARBOXALDEHYDE OF FROM 1 TO 5 CARBON ATOMS, SAID ARTICLE BEING SUBSTANTIALLY WATER-INSOLUBNLE AND FLAME-RETARDANT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |