US1994714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of synthetic resins
Assignee: COMBUSTION UTILITIES CORP
•
Filing: 1931-05-23
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Granted: 1935-03-19
•
Expires: 1951-05-23
Abstract
No abstract record available.
Inventors
- 👤 Johnson Alfred
- 👤 Charles E Howson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:26
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; B; B01; B01J; B01J19/00; B01J19/18; B01J19/1868; B01J19/1881; C08G8/00; C08G8/04
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) | 1938-03-18 | 1938-09-17 | 1939-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-03-18 | 1942-09-17 | 1943-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-03-18 | 1946-09-17 | 1947-03-19 | $7700.00 | Window Closed / Lapsed |