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Patent US3304346A successfully refreshed from Google Patents.
US3304346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent triazinyl benzopyronealdehyde condensation products
Assignee: Dal Mon Research Co
•
Filing: 1963-03-01
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Granted: 1967-02-14
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:03
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
18 words
A FLUORESCENT COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCT OF AN ALDEHYDE AND A TRIAZINE HAVING THE STRUCTURE
Claim 2
Dependent Claim
18 words
A FLUORESCENT COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCT OF AN ALDEHYDE AND A TRIAZINE HAVING THE STRUCTURE
Claim 3
Dependent Claim
14 words
A COMPOSITION OF CLAIM 1 IN WHICH SAID MASS ALSO COMPRISES A METHYLOL UREA.
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |