US3402566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating valve for refrigeration systems
Assignee: Sporlan Valve Co
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Filing: 1966-04-04
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Granted: 1968-09-24
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Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 Leimbach John George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:16
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/20; F25B41/30; F25B41/31; F25B41/33; F25B41/335; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7801
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |