Patent US3470915A successfully refreshed from Google Patents.
US3470915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed regulating valve assembly
Assignee: Trico Products Corp
•
Filing: 1966-12-14
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Granted: 1969-10-07
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Expires: 1986-12-14
Abstract
No abstract record available.
Inventors
- 👤 Martin Bitzer
- 👤 Raymond A Deibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:23
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/10; G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; G05D7/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1998761A
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US1983213A
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US2236084A
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US2574294A
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US2511733A
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US2547175A
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US2680262A
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US2813541A
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US2838072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |