Patent US6360102B1 successfully refreshed from Google Patents.
US3531394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifoulant additive for steam-cracking process
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1968-04-25
•
Granted: 1970-09-29
•
Expires: 1988-04-25
Abstract
No abstract record available.
Inventors
- 👤 Ihor Koszman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:44
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/02; C07C4/04; B; B01; B01J; B01J19/00; B01J19/0006; B01J19/002; B01J19/0026; C10; C10G; C10G9/00; C10G9/14; C10G9/16; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/95
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |