Patent US2950320A successfully refreshed from Google Patents.
US2950320A
Expired / Lapsed
US
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5-benzoyl pentanol-1
Assignee: Hercules Powder Co
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Filing: 1953-05-27
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Granted: 1960-08-23
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Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Vandenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:33
CPC Classifications
C; C07; C07C; C07C409/00; C07C409/02; C07C409/14; C07C407/00; C07C45/00; C07C45/51; C07C45/53; C07C49/00; C07C49/76; C07C49/82; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA483614A
Cited
US2597349A
Cited
GB626095A
Cited
US2527640A
Cited
GB641250A
Cited
FR979665A
Cited
US2640067A
Cited
US2671809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |