Patent US3125597A successfully refreshed from Google Patents.
US3125597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
chj oh
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:27
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74; C07C49/00; C07C49/20; C07C49/213; C07C49/217; C07C49/223; C07C57/00; C07C57/30; C07C57/42; C07C57/52; C07C57/58; C07C57/60; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/19
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
8 words
A HYDROXYALKYL ESTR OF 1-CARBOXY-1,4-DIPHENYL-1,3BUTADIENT OF THE FORMULA
References Cited (Backward Citations)
US2241239A
Cited
US2440070A
Cited
US2614090A
Cited
US2759820A
Cited
US2554142A
Cited
US2768077A
Cited
US2775574A
Cited
US2748021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |