US3531518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the reaction of alpha-olefins and gaseous sulfur trioxide
Assignee: Procter and Gamble Co
•
Filing: 1966-07-14
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Granted: 1970-09-29
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Expires: 1986-07-14
Abstract
No abstract record available.
Inventors
- 👤 Tom H Ohren
- 👤 Ronald L Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:15
CPC Classifications
C; C07; C07C; C07C309/00
Claims Analysis
Total Claims: 0
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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 |