US3511882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Products of reaction of polyoxyalkylene alcohols and di-glycidyl ethers of bis-phenol compounds
Assignee: ChampionX LLC
•
Filing: 1968-02-26
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Granted: 1970-05-12
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Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 Virgil L Seale
- 👤 Billy Ray Moreland
- 👤 James Derwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:14
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2723241A
Cited
US3078271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |