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US2964524A
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Omicron, omicron, omicron, omicron-tetraalkyl hexahydro-3, 6-dioxo-s-tetrazin-1, 4-ylene diphosphonothioate
Assignee: Dow Chemical Co
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Filing: 1959-10-28
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Granted: 1960-12-13
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Expires: 1979-10-28
Abstract
No abstract record available.
Inventors
- 👤 Tolkmith Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:00
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6524
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE O,O,O,O-TETRA(LOWER ALKYL) HEXAHYDRO-3,6-DIOXO-S-TETRAZIN-1,4-YLENE DIPHOSPHONOTHIOATES.
Claim 2
Dependent Claim
5 words
THE O,O,O,O-TETRA(LOWER ALKYL) HEXAHYDRO-3,6-DIOXO-S-TETRAZIN-1,4-YLENE DIPHOSPHONOTHIOATES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |