US3492243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic solvent for prolamins
Assignee: ChampionX LLC
•
Filing: 1967-01-06
•
Granted: 1970-01-27
•
Expires: 1987-01-06
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Newman
- 👤 Dean G Hepfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:04
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/50; C; C08; C08F; C08F120/00; C08F120/02; C08F120/42; C08F120/44; C08F8/00; C08F8/12; C08K; C08K5/00; C08K5/04; C08K5/05; C08L; C08L33/00; C08L33/18; C08L33/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB732912A
Cited
US2824077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |