Patent US3388713A successfully refreshed from Google Patents.
US3388713A
Expired / Lapsed
US
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Pure fluid summing impact modulator and universal amplifiers constructed therewith
Assignee: Johnson Controls International Inc
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Filing: 1965-01-25
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Granted: 1968-06-18
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Expires: 1985-01-25
Abstract
No abstract record available.
Inventors
- 👤 Bjornsen Bjorn Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/20; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/2131; Y10T137/2164; Y10T137/2169; Y10T137/2174
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) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |