Patent US581913A successfully refreshed from Google Patents.
Patent US3184459A successfully refreshed from Google Patents.
US3184459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chs chj
Assignee: —
•
Filing: —
•
Granted: 1965-05-18
•
Expires: 1982-05-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:38
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/14; C07D251/16; C07D311/00; C07D311/02; C07D311/04; C07D311/06; C07D311/08; C07D311/16; C07D311/18; C07D311/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |