US3352791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation of light by the reaction of peroxide with heterocyclic derivatives
Assignee: Wyeth Holdings LLC
•
Filing: 1965-01-22
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Granted: 1967-11-14
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Expires: 1985-01-22
Abstract
No abstract record available.
Inventors
- 👤 Sheehan Desmond
- 👤 Clarke Rose Ann
- 👤 Rauhut Michael Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:36
CPC Classifications
C; C07; C07D; C07D219/00; C07D219/04; C07D219/06; C07D219/02; C07D219/08; C09; C09K; C09K11/00; C09K11/06; C09K11/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A CHEMILUMINESCENT REACTANT COMPRISING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) AN ACRIDINE-9-CARBOXYLIC ACID COMPOUND REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
21 words
A CHEMILUMINESCENT REACTANT COMPRISING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) AN ACRIDINE-9-CARBOXYLIC ACID COMPOUND REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
US2420286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |