Patent US3400736A successfully refreshed from Google Patents.
US3400736A
Expired / Lapsed
US
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Reversing valve
Assignee: Controls Company of America
•
Filing: 1966-05-31
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Granted: 1968-09-10
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Clifford F Bastle
- 👤 John J Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:17
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/42; F16K31/423; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/0655; F25; F25B; F25B41/00; F25B41/20; F25B41/26; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86726; Y10T137/86839
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US746337A
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US910092A
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US2708561A
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US2843864A
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US3045700A
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US3032312A
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US2983286A
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US2974682A
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US3056574A
Cited
US3212527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |