US1028074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ortho-oxalic-acid ester of meta-cresol and process for the manufacture of the same.
Assignee: RUTGERS-WERKE-ACTIENGESELLSCHAFT
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Filing: 1909-06-21
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Granted: 1912-05-28
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Expires: 1929-06-21
Abstract
No abstract record available.
Inventors
- 👤 Leopold Kahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:58
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/205; C07C43/2055
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) | 1915-05-28 | 1915-11-27 | 1916-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-05-28 | 1919-11-27 | 1920-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-05-28 | 1923-11-27 | 1924-05-28 | $7700.00 | Window Closed / Lapsed |