US3489821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blend comprising an epdm graft terpolymer and a resin
Assignee: Dow Chemical Co
•
Filing: 1962-08-31
•
Granted: 1970-01-13
•
Expires: 1982-08-31
Abstract
No abstract record available.
Inventors
- 👤 Harry S Witt
- 👤 Charles F Paddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:45
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08F; C08F255/00; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L25/14; C08L25/16; C08L33/00; C08L33/18; C08L33/20; C08L51/00; C08L51/06; Y; Y10; Y10S; Y10S525/00; Y10S525/904; Y10S525/942
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA633890A
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GB835578A
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US3236917A
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GB870650A
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US3010936A
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US3041307A
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US3200174A
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GB885986A
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US3000866A
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US3177270A
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US3103501A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |