US3481766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic microporous polymeric sheet material
Assignee: EIDP Inc
•
Filing: 1966-12-29
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Granted: 1969-12-02
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Expires: 1986-12-29
Abstract
No abstract record available.
Inventors
- 👤 James M Craven
- 👤 John I Dye
- 👤 Jerome Hochberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/12; B29D35/14; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G64/00; C08G64/18; C08G64/183; C08J; C08J9/00; C08J9/28; C08L; C08L75/00; C09; C09D; C09D175/00; C09D175/04; C09D175/08; D; D06; D06N; D06N3/00; D06N3/0002; D06N3/0015; D06N3/0022; D06N3/12; D06N3/121; D06N3/14; D06N3/18; D06N3/183; C08J2201/00; C08J2201/04; C08J2201/05; C08J2201/0502; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24471; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/24998; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31573; Y10T428/3158; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T442/00; Y10T442/20; Y10T442/2139; Y10T442/2148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2929802A
Cited
US2962470A
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US2987494A
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US3067483A
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US3067482A
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US3180853A
Cited
US3100712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |