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Patent US2930367A successfully refreshed from Google Patents.
US2930367A
Expired / Lapsed
US
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Heat valve
Assignee: Motors Liquidation Co
•
Filing: 1955-04-07
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Granted: 1960-03-29
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Expires: 1975-04-07
Abstract
No abstract record available.
Inventors
- 👤 Adelbert E Kulbe
- 👤 Jack M Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:29
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/04; F02M31/06; F02M31/08; F02M31/083; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2603199A
Cited
US1643957A
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US1507315A
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US1608205A
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US1889270A
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US1998636A
Cited
US2109628A
Cited
US2054997A
Cited
US2523611A
Cited
US2673687A
Cited
US2725862A
Cited
US2730091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |