US3264221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemiluminescence
Assignee: EIDP Inc
•
Filing: 1960-07-11
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Granted: 1966-08-02
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Hilmer E Winberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:47
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; C09K11/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A CHEMILUMINESCENT COMPOSITION CONSISTING ESSENTIALLY OF TETRAKIS(DIMETHYLAMINO)ETHYLENE, AN OXIDIZING AGENT FOR THE SAME SELECTED FROM THE GROUP CONSISTING OF OXYGEN AND PEROXIDES, AND A LIQUID WHICH IS IMMISCIBLE WITH TETRAKIS(DIMETHYLAMINO)ETHYLENE BUT WHICH IS A SOLVENT FOR TETRAMETHYLUREA AND TETRAMETHYLOXAMIDE.
Claim 2
Dependent Claim
39 words
A CHEMILUMINESCENT COMPOSITION CONSISTING ESSENTIALLY OF TETRAKIS(DIMETHYLAMINO)ETHYLENE, AN OXIDIZING AGENT FOR THE SAME SELECTED FROM THE GROUP CONSISTING OF OXYGEN AND PEROXIDES, AND A LIQUID WHICH IS IMMISCIBLE WITH TETRAKIS(DIMETHYLAMINO)ETHYLENE BUT WHICH IS A SOLVENT FOR TETRAMETHYLUREA AND TETRAMETHYLOXAMIDE.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |