Patent US2514929A successfully refreshed from Google Patents.
US3355366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for inhibiting foaming of hexachlorobutadiene-1, 3 by addition of diatomaceous earth
Assignee: Ethyl Corp
•
Filing: 1966-01-21
•
Granted: 1967-11-28
•
Expires: 1986-01-21
Abstract
No abstract record available.
Inventors
- 👤 William Q Beard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:11
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42; Y; Y10; Y10S; Y10S159/00; Y10S159/04; Y10S159/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |