US2656343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroperoxides of dehydroabietic acid derivatives
Assignee: Hercules Powder Co
•
Filing: 1951-05-08
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Granted: 1953-10-20
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Expires: 1971-05-08
Abstract
No abstract record available.
Inventors
- 👤 Paul F Ritchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:54
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/02; C07C409/14; C07C409/04; C07C409/08; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
AN ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF 9-HYDROPEROXYDEHYDROABIETIC ACID, 14-HYDROPEROXYDEHYDRROABIETIC ACID, 9,14-DIHYDROPEROXYDEHYDROABIETIC ACID, 9-HYDROXY-14-HYDROPEROXYDEHYDROABIETIC ACID, 9-OXO-14-HYDROPEROXYDEHYDROABIETIC ACID.
Claim 2
Dependent Claim
21 words
AN ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF 9-HYDROPEROXYDEHYDROABIETIC ACID, 14-HYDROPEROXYDEHYDRROABIETIC ACID, 9,14-DIHYDROPEROXYDEHYDROABIETIC ACID, 9-HYDROXY-14-HYDROPEROXYDEHYDROABIETIC ACID, 9-OXO-14-HYDROPEROXYDEHYDROABIETIC ACID.
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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |