US3733286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions for pigmented paper coatings which contain styrene-acrolein polymers
Assignee: ChampionX LLC
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Filing: 1970-10-19
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Granted: 1973-05-15
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Expires: 1990-10-19
Abstract
Abstract ACROLEIN-STYRENE POLYMERS HAVE BEEN FOUND EFFECTIVE AS COATINGS IN IMPARTING WATER RESISTANCE TO PIGMENTED PAPER.
Inventors
- 👤 D Holly
- 👤 G Kekish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:37
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/58; C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D129/00; C09D129/12; C08; C08L; C08L29/00; C08L29/02; C08L29/04; C08L3/00
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |