US2720674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorcheck for refrigerators
Assignee: General Electric Co
•
Filing: 1952-12-27
•
Granted: 1955-10-18
•
Expires: 1972-12-27
Abstract
No abstract record available.
Inventors
- 👤 Julius B Horvay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:18
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/06; E05Y; E05Y2900/00; E05Y2900/30; E05Y2900/31; F; F25; F25D; F25D2323/00; F25D2323/02; F25D2323/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH24072A
Cited
US1154399A
Cited
US1249086A
Cited
US1735024A
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US1931271A
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US2018876A
Cited
US2201594A
Cited
US2397699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |