Patent US3850038A successfully refreshed from Google Patents.
Patent US2817662A successfully refreshed from Google Patents.
US2817662A
Expired / Lapsed
US
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3, 6-bis-(aliphatic fluorohydrocarbon)-s-tetrazines, their 1, 2-dihydro derivatives and methods for their preparation
Assignee: EIDP Inc
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Filing: 1956-04-20
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Granted: 1957-12-24
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Expires: 1976-04-20
Abstract
No abstract record available.
Inventors
- 👤 Rudolph A Carboni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:49
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/36; C; C07; C07D; C07D257/00; C07D257/02; C07D257/08; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C09; C09D; C09D11/00; C11; C11B; C11B5/00; C11B5/0042; C11B5/0064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
FLUORINE-CONTAINING DERIVATIVE OF S-TETRAZINE REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
8 words
FLUORINE-CONTAINING DERIVATIVE OF S-TETRAZINE REPRESENTED BY THE FORMULA
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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |