US3200800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1962-04-27
•
Granted: 1965-08-17
•
Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Bois Francois M Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:16
CPC Classifications
F; F01; F01B; F01B9/00; F01B9/02; F01B9/026; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02B75/24; F02B75/246; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN INTERNAL COMBUSTION ENGINE COMPRISING A CRANKSHAFT, A CONNECTING ROD ATTACHED THERETO, AN H-SHAPED, RIGID FRAME ATTACHED TO THE CRANKSHAFT, PISTONS FIXED TO THE ENDS OF THE H, POWER CYLINDERS, ENCLOSING THE PISTONS, A FUEL INJECTION MEANS FOR EACH SAID CYLINDER, AN EXHAUST MEANS FOR EACH SAID CYLINDER, THE CYLINDERS ON ONE SIDE OF THE CRANKSHAFT BEING THUS ADAPTED TO FIRE TOGETHER, OPPOSED PRESSURE GENERATING CYLINDERS INTERMEDIATE THE SAID PISTONS, PISTONS IN THE INTERMEDIATE CYLINDERS EACH CYLINDER OF WHICH HAS A VOLUME GREATER THAN THAT OF A SINGLE POWER CYLINDER, CONDUIT MEANS CONNECTING THE
Claim 2
Dependent Claim
94 words
AN INTERNAL COMBUSTION ENGINE COMPRISING A CRANKSHAFT, A CONNECTING ROD ATTACHED THERETO, AN H-SHAPED, RIGID FRAME ATTACHED TO THE CRANKSHAFT, PISTONS FIXED TO THE ENDS OF THE H, POWER CYLINDERS, ENCLOSING THE PISTONS, A FUEL INJECTION MEANS FOR EACH SAID CYLINDER, AN EXHAUST MEANS FOR EACH SAID CYLINDER, THE CYLINDERS ON ONE SIDE OF THE CRANKSHAFT BEING THUS ADAPTED TO FIRE TOGETHER, OPPOSED PRESSURE GENERATING CYLINDERS INTERMEDIATE THE SAID PISTONS, PISTONS IN THE INTERMEDIATE CYLINDERS EACH CYLINDER OF WHICH HAS A VOLUME GREATER THAN THAT OF A SINGLE POWER CYLINDER, CONDUIT MEANS CONNECTING THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |