US3051676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solutions of poly-n-vinyl-5-methyl-2-oxazolidinone containing alkyl diphenyl ether sulfonate
Assignee: Dow Chemical Co
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Filing: 1960-08-24
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Granted: 1962-08-28
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Expires: 1980-08-24
Abstract
No abstract record available.
Inventors
- 👤 William W Bakke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:49
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/5214; D06P1/5242; D06P5/00; D06P5/13; D06P5/138; C08J2339/00; C08J2339/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
AN AQUEOUS SOLUTION OF POLY-N-VINYL-5-METHYL-2OXADOLIDINONE WHICH COMPRISES SAID POLYMER DISSOLVED IN AN AQUEOUS SOLVENT VEHICLE CONSISTING ESSENTIALLY OF WATER MIXED WITH AT LEAST ONE ALKYL DIPHENYL ETHER SULFONATE OF THE FORMULA:
Claim 2
Dependent Claim
31 words
AN AQUEOUS SOLUTION OF POLY-N-VINYL-5-METHYL-2OXADOLIDINONE WHICH COMPRISES SAID POLYMER DISSOLVED IN AN AQUEOUS SOLVENT VEHICLE CONSISTING ESSENTIALLY OF WATER MIXED WITH AT LEAST ONE ALKYL DIPHENYL ETHER SULFONATE OF THE FORMULA:
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |