US2426728A
Expired / Lapsed
US
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Molecularly oriented copolymers of acrylonitrile, a saturated monohydric alcohol ester of an ethylene alpha beta dicarboxylic acid, and acrylic esters or vinyl ethers
Assignee: Pro Phy Lac Tic Brush Co
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Filing: 1944-02-25
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Granted: 1947-09-02
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Expires: 1964-02-25
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:12
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1933052A
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US2047398A
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US2016490A
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GB387976A
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US1929453A
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US2367493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |