US3489642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorinated and chlorosulfonated polyethylene - ethylene/acrylic acid copolymer blends
Assignee: EIDP Inc
•
Filing: 1968-05-10
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Granted: 1970-01-13
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Expires: 1988-05-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Heuse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:32
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; C08L23/32; C08L23/34; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3355519A
Cited
US3326833A
Cited
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 |