Patent US2715102A successfully refreshed from Google Patents.
US2715102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meta-and para-phenylene diamines as polymerization inhibitors for diacetylene
Assignee: Monsanto Chemicals Ltd
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Filing: 1953-11-12
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Granted: 1955-08-09
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Expires: 1973-11-12
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:27
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF DIACETYLENE, A SOLVENT THEREFOR, AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE META- AND PARAPHENYLENE DIAMINES AND THEIR HYDROCHLORIDES IN AN AMOUNT FROM ABOUT 0.01% TO ABOUT 5% BY WEIGHT OF THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
43 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF DIACETYLENE, A SOLVENT THEREFOR, AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE META- AND PARAPHENYLENE DIAMINES AND THEIR HYDROCHLORIDES IN AN AMOUNT FROM ABOUT 0.01% TO ABOUT 5% BY WEIGHT OF THE TOTAL COMPOSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |