US1727682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of xylenes
Assignee: General Aniline Works Inc
•
Filing: 1927-09-15
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Granted: 1929-09-10
•
Expires: 1947-09-15
Abstract
No abstract record available.
Inventors
- 👤 Tschunkur Eduard
- 👤 Eichler Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/067; C07C15/08; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93; Y10S585/935
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) | 1932-09-09 | 1933-03-11 | 1933-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-09 | 1937-03-11 | 1937-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-09 | 1941-03-11 | 1941-09-10 | $7700.00 | Window Closed / Lapsed |