US3374281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alkylated benzenes from paraffins
Assignee: Chevron USA Inc
•
Filing: 1965-09-28
•
Granted: 1968-03-19
•
Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 Sigmund M Csiesery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
C; C07; C07C; C07C2/00; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/16; C07C2523/20; C07C2523/24; C07C2523/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1074564B
Cited
US3126426A
Cited
US2739996A
Cited
DE1054623B
Cited
US3000809A
Cited
US2992283A
Cited
US3046317A
Cited
US3247276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |