Patent US1322052A successfully refreshed from Google Patents.
US1322052A
Expired / Lapsed
US
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Process of producing anthranilic acid.
Assignee: Barrett Co Inc
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Filing: 1919-06-17
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Granted: 1919-11-18
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Expires: 1939-06-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph S Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:29
CPC Classifications
C; C07; C07C; C07C227/00; C07C227/04
Claims Analysis
Total Claims: 0
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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) | 1922-11-17 | 1923-05-19 | 1923-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-11-17 | 1927-05-19 | 1927-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-11-17 | 1931-05-19 | 1931-11-18 | $7700.00 | Window Closed / Lapsed |