US2885430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-(o:o-diethyl-dithiophosphoryl) 1:4-butylene-dimethyl ether
Assignee: Hoechst AG
•
Filing: 1957-04-02
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Granted: 1959-05-05
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Expires: 1977-04-02
Abstract
No abstract record available.
Inventors
- 👤 Scherer Otto
- 👤 Hahn Helmut
- 👤 Frensch Heinz
- 👤 Emmel Ludwig Friedrich
- 👤 Staudermann Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:44
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C07F9/08; C07F9/09; C07F9/091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA515666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |