Patent US2707181A successfully refreshed from Google Patents.
US2707181A
Expired / Lapsed
US
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Method for preparing solid diazonium
Assignee: —
•
Filing: —
•
Granted: 1955-04-26
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Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:06
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/0003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2062873A
Cited
US2171976A
Cited
US1767798A
Cited
US2000995A
Cited
US2146033A
Cited
US2612494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |