US3520839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hexadienol and hexadienal derivatives
Assignee: Union Carbide Corp
•
Filing: 1969-04-01
•
Granted: 1970-07-21
•
Expires: 1989-04-01
Abstract
No abstract record available.
Inventors
- 👤 Charles L Milligan
- 👤 Robert J Ward
- 👤 Robert A Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:11
CPC Classifications
C; C07; C07C; C07C255/00; C07C67/00; C07C67/03; C08; C08F; C08F8/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA527255A
Cited
US1695566A
Cited
US1793667A
Cited
US1720051A
Cited
US2957837A
Cited
US3012993A
Cited
US3255214A
Cited
US3277050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |