US2729938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber crossover tube
Assignee: Motors Liquidation Co
•
Filing: 1951-01-26
•
Granted: 1956-01-10
•
Expires: 1971-01-26
Abstract
No abstract record available.
Inventors
- 👤 Charles J Mcdowall
- 👤 John B Wheatley
- 👤 Floyd G Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:53
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/46; F23R3/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US73221A
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US482808A
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US2198535A
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US745618A
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US823117A
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US878353A
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US2437385A
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US2475911A
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GB575922A
Cited
US2525207A
Cited
US2540642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |