US3377283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing thickened compositions
Assignee: Lubrizol Corp
•
Filing: 1967-03-09
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Granted: 1968-04-09
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Expires: 1987-03-09
Abstract
No abstract record available.
Inventors
- 👤 Richard L Mcmillen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:45
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/24; B; B01; B01J; B01J19/00; B01J19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2948679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |