US3435630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid immersion type freezer
Assignee: INTERN REFRIGERATION CO Inc
•
Filing: 1967-07-24
•
Granted: 1969-04-01
•
Expires: 1987-07-24
Abstract
No abstract record available.
Inventors
- 👤 John W Ferry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:24
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/06; A23B4/066; F; F25; F25D; F25D13/00; F25D13/06; F25D13/065; F25D17/00; F25D17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2791890A
Cited
US3049890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |