US3435899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delayed gelling of sodium silicate and use therefor
Assignee: Halliburton Co
•
Filing: 1967-04-24
•
Granted: 1969-04-01
•
Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Homer C Mclaughlin
- 👤 Joseph Ramos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:36
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/04; C01; C01B; C01B33/00; C01B33/20; C01B33/32; C04B22/00; C04B22/08; C04B28/00; C04B28/24; C04B28/26; C09; C09K; C09K8/00; C09K8/42; C09K8/46; C09K8/50; C09K8/504; C09K8/5045; C04B2103/00; C04B2103/0068; C04B2103/0095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2208766A
Cited
US2302913A
Cited
US2827384A
Cited
US2968572A
Cited
US3202214A
Cited
US3294563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |