US3416899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel compositions and preparation
Assignee: Phillips Petroleum Co
•
Filing: 1966-10-03
•
Granted: 1968-12-17
•
Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Schiff Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:19
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/64; C08; C08C; C08C19/00; C08C19/02; C08F; C08F8/00; C08F8/04; Y; Y10; Y10S; Y10S507/00; Y10S507/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3257332A
Cited
US2927849A
Cited
US3151181A
Cited
US2966401A
Cited
US3243270A
Cited
US3205278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |