US3140290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
- hybkoxy -
Assignee: —
•
Filing: —
•
Granted: 1964-07-07
•
Expires: 1981-07-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:48
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/04; C07D233/28; C07D233/30; C07D233/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2370839A
Cited
GB577735A
Cited
US2468593A
Cited
US2777857A
Cited
US2842553A
Cited
US2887485A
Cited
US2854379A
Cited
US2922744A
Cited
US2981739A
Cited
US3014042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |