US3478108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isobutane oxidation
Assignee: Atlantic Richfield Co
•
Filing: 1966-02-21
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Granted: 1969-11-11
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Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Henry R Grane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:38
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/48; C07C29/50; C07C407/00; C07C409/00; C07C409/02; C07C409/04
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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |