US2597515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic machine for freezing spiral ice chips
Assignee: Individual
•
Filing: 1950-03-03
•
Granted: 1952-05-20
•
Expires: 1970-03-03
Abstract
No abstract record available.
Inventors
- 👤 John M Nitsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:07
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/12; F25C1/14; F25C1/145; F25C1/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1847149A
Cited
US1576137A
Cited
US1783864A
Cited
US1798725A
Cited
GB409499A
Cited
US2467933A
Cited
US2426368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |