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Patent US1064227A successfully refreshed from Google Patents.
US1064227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salt of hexamethylenetetramin and process of making same.
Assignee: Hoechst AG
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Filing: 1912-09-18
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Granted: 1913-06-10
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Expires: 1932-09-18
Abstract
No abstract record available.
Inventors
- 👤 Adolf Kircher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:28
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/12; C07D487/18
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) | 1916-06-09 | 1916-12-09 | 1917-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-06-09 | 1920-12-09 | 1921-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-06-09 | 1924-12-09 | 1925-06-10 | $7700.00 | Window Closed / Lapsed |