Patent US3472825A successfully refreshed from Google Patents.
US3472825A
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US
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Alkali metal salts of ethylene-acrylic acid interpolymers
Assignee: Union Carbide Corp
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Filing: 1967-02-15
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Granted: 1969-10-14
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Expires: 1987-02-15
Abstract
No abstract record available.
Inventors
- 👤 Andrew T Walter
- 👤 George M Bryant
- 👤 Chester L Purcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:23
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; C; C08; C08F; C08F8/00; C08F8/44; Y; Y10; Y10S; Y10S526/00; Y10S526/932; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA655298A
Cited
US3264272A
Cited
US3355319A
Cited
US3338729A
Cited
US3373224A
Cited
US3321819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |