Patent US2969786A successfully refreshed from Google Patents.
US2969786A
Expired / Lapsed
US
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Combustion chambers for engines
Assignee: Motors Liquidation Co
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Filing: 1958-05-29
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Granted: 1961-01-31
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Expires: 1978-05-29
Abstract
No abstract record available.
Inventors
- 👤 Dolza John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:10
CPC Classifications
F; F02; F02B; F02B23/00; F02B23/08; F02B2275/00; F02B2275/20; F02B75/00; F02B75/16; F02B75/18; F02B75/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE891948C
Cited
GB190905211A
Cited
US1812262A
Cited
US2058487A
Cited
US2071062A
Cited
US2766739A
Cited
US2738780A
Cited
US2676580A
Cited
US2800118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |