US3372902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve, especially expansion valve for refrigerator
Assignee: Ernst Flitsch GmbH and Co
•
Filing: 1965-12-03
•
Granted: 1968-03-12
•
Expires: 1985-12-03
Abstract
No abstract record available.
Inventors
- 👤 Gotzenberger Rudibert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:19
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36; F16K1/38; F25; F25B; F25B41/00; F25B41/30; F25B41/31; G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |