US3485055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous freezer
Assignee: Airco Inc
•
Filing: 1964-09-18
•
Granted: 1969-12-23
•
Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 Robert C Webster
- 👤 Alfred H Schlemmer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:05
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/85; A23B2/88; F; F25; F25D; F25D3/00; F25D3/10; F25D3/11; F25D13/00; F25D13/06; F25D13/065; F25D2400/00; F25D2400/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2234157A
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US2454704A
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US2447249A
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US2609150A
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US3048989A
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US3022636A
Cited
US3250630A
Cited
US3258935A
Cited
US3413818A
Cited
US3298188A
Cited
US3255608A
Cited
US3277657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |