US3597362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation of light by the reaction of esters of oxalic-type acids
Assignee: Wyeth Holdings LLC
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Filing: 1967-02-28
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Granted: 1971-08-03
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Expires: 1987-02-28
Abstract
Abstract THIS INVENTION RELATES TO A PROCESS FOR OBTAINING CHEMILUMINESCENT LIGHT BY REACTING AN OXALIC-TYPE ESTER WITH A HYDROPEROXIDE IN THE PRESENCE OF A SOLVENT AND A FLUORESCENT COMPOUND, AND TO COMPOSITIONS INCORPORATING PART OR ALL OF THESE MATERIALS FOR THE PROCESS, AND TO ARTICLES INCORPORATING SUCH COMPOSITIONS.
Inventors
- 👤 Laszlo Joseph Bollyky
- 👤 Michael Mckay Rauhut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:12
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/64; C07C; C07C205/00; C07C205/39; C07C205/42; C07C205/43; C07C205/44; C07C55/00; C07C55/02; C07C55/06; C07C55/08; C07C57/00; C07C57/30; C07C57/38; C07C63/00; C07C63/04; C07C63/06; C07C63/14; C07C63/15; C07C63/16; C07C65/00; C07C65/21; C07C65/24; C09; C09K; C09K11/00; C09K11/06; C09K11/07; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/206664
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |