US2697046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture permeable cellulose acetate composition
Assignee: Atlas Powder Co
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Filing: 1950-10-31
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Granted: 1954-12-14
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Expires: 1970-10-31
Abstract
No abstract record available.
Inventors
- 👤 John D Brandner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:25
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08L1/10; C08L1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AS A COMPOSITION OF MATTER, CELLULOSE ACETATE AND A PLASTICIZER THEREFOR SAID PLASTICIZER COMPRISING FROM 10% TO 35% BY WEIGHT OF THE SUM OF CELLULOSE ACETATE AND PLASTICIZER, WHEREIN AT LEAST HALF OF SAID PLASTICIZER IS A MONOPHENYL ETHER OF A POLYETHYLENE GLYCOL CONTAINING FROM 4 TO 6 OXYETHYLENE GROUPS AND THE BALANCE IS ANOTHER SOLVENT PLASTICIZER FOR CELLULOSE ACETATE, AND WHEREIN THE SAID ETHER CONSITIUTES NOTMORE THAN 25% OF THE SAID SUM.
Claim 2
Dependent Claim
73 words
AS A COMPOSITION OF MATTER, CELLULOSE ACETATE AND A PLASTICIZER THEREFOR SAID PLASTICIZER COMPRISING FROM 10% TO 35% BY WEIGHT OF THE SUM OF CELLULOSE ACETATE AND PLASTICIZER, WHEREIN AT LEAST HALF OF SAID PLASTICIZER IS A MONOPHENYL ETHER OF A POLYETHYLENE GLYCOL CONTAINING FROM 4 TO 6 OXYETHYLENE GROUPS AND THE BALANCE IS ANOTHER SOLVENT PLASTICIZER FOR CELLULOSE ACETATE, AND WHEREIN THE SAID ETHER CONSITIUTES NOTMORE THAN 25% OF THE SAID SUM.
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) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |