Patent US1950180A successfully refreshed from Google Patents.
US1950180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid carbon dioxide product and method of making it
Assignee: AMERICAN DRYICE Corp
•
Filing: 1933-08-04
•
Granted: 1934-03-06
•
Expires: 1953-08-04
Abstract
No abstract record available.
Inventors
- 👤 Charles L Jones
- 👤 John D Small
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:00
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/50; C01B32/55
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1937-03-05 | 1937-09-04 | 1938-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-03-05 | 1941-09-04 | 1942-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-03-05 | 1945-09-04 | 1946-03-06 | $7700.00 | Window Closed / Lapsed |