Patent US3082254A successfully refreshed from Google Patents.
US3082254A
Expired / Lapsed
US
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Propynyl hydrazobenzenes
Assignee: Dow Chemical Co
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Filing: 1961-03-31
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Granted: 1963-03-19
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Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
- 👤 Chester E Pawloski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:51
CPC Classifications
C; C07; C07C; C07C243/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
THE COMPOUND SELECTED FROM THE GROUP CONSISTING OF N-(2-PROPYNYL) HYDRAZOBENZENE AND N,N''-DI(2-PROPYNYL) HYDRAZOBENZENE.
Claim 2
Dependent Claim
13 words
THE COMPOUND SELECTED FROM THE GROUP CONSISTING OF N-(2-PROPYNYL) HYDRAZOBENZENE AND N,N''-DI(2-PROPYNYL) HYDRAZOBENZENE.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |