US3053060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice-forming and ice-melting cooling system
Assignee: Individual
•
Filing: 1954-08-06
•
Granted: 1962-09-11
•
Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Grace F Morrison
- 👤 John O Levinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:35
CPC Classifications
F; F25; F25D; F25D16/00; A; A01; A01J; A01J9/00; A01J9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1891714A
Cited
US2160333A
Cited
US2221423A
Cited
US2538015A
Cited
US2571923A
Cited
US2571924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |