US3375679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator-freezer construction
Assignee: RANNCY REFRIGERATOR Co
•
Filing: 1967-02-09
•
Granted: 1968-04-02
•
Expires: 1987-02-09
Abstract
No abstract record available.
Inventors
- 👤 Wayne F Helsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25D17/042; F25D17/045; F25D2317/00; F25D2317/06; F25D2317/068; F25D2317/0681; F25D2400/00; F25D2400/06; F25D2700/00; F25D2700/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1774312A
Cited
US2117570A
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US2546363A
Cited
US2572715A
Cited
US2815649A
Cited
US2812642A
Cited
US3122005A
Cited
US3287933A
Cited
US3253422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |