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US2417455A
Expired / Lapsed
US
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Terpene ethers
Assignee: Hercules Powder Co
•
Filing: 1943-10-04
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Granted: 1947-03-18
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Expires: 1963-10-04
Abstract
No abstract record available.
Inventors
- 👤 Richard F B Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:32
CPC Classifications
C; C07; C07C; C07C35/00; C07C35/22; C07C35/23; C07C35/28; C07C35/29; C07C35/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2151769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |