Patent US3204619A successfully refreshed from Google Patents.
US3204619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: AMF Inc
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Filing: 1962-07-02
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Granted: 1965-09-07
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Rubinowitz Leo
- 👤 Opuszenski Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:00
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/02; F01N1/04; F01N13/00; F01N13/001; F01N13/002; F01N13/18; F01N13/1861; F01N13/1866; F02; F02B; F02B33/00; F02B33/02; F02B33/04; F02B63/00; F02B63/02; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F01N2590/00; F01N2590/06; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A TWO STROKE SINGLE CYLINDER INTERNAL COMBUSTION ENGINE, A CYLINDER, A PISTON SPACED FROM THE CYLINDER WALL, PISTON RINGS ON SAID PISTON AND A PISTON ROD WHICH ENTIRELY PERFORMS THE GUIDING FOR SAID PISTON, SAID CYLINDER HAVING INLET AND OUTLET PORTS ADAPTED TO BE INTERMITTENTLY COVERED AND UNCOVERED BY THE PISTON; A CRANKCASE AND A STUFFING BLOCK INTERPOSED BETWEEN SAID PISTON AND CRANKCASE; SAID PISTON AND STUFFING BLOCK DEFINING A COMPRESSION CHAMBER; A COMBUSTION AIR PASSAGE TO SAID COMPRESSION CHAMBER THROUGH SAID CRANKCASE; SAID STUFFING BLOCK HAVING A CENTRAL BORE FOR PASSAGE OF THE PISTON ROD, SAID BORE COMPRISING THE SOLE GUIDE FOR SAID PISTON ROD.
Claim 2
Dependent Claim
107 words
IN A TWO STROKE SINGLE CYLINDER INTERNAL COMBUSTION ENGINE, A CYLINDER, A PISTON SPACED FROM THE CYLINDER WALL, PISTON RINGS ON SAID PISTON AND A PISTON ROD WHICH ENTIRELY PERFORMS THE GUIDING FOR SAID PISTON, SAID CYLINDER HAVING INLET AND OUTLET PORTS ADAPTED TO BE INTERMITTENTLY COVERED AND UNCOVERED BY THE PISTON; A CRANKCASE AND A STUFFING BLOCK INTERPOSED BETWEEN SAID PISTON AND CRANKCASE; SAID PISTON AND STUFFING BLOCK DEFINING A COMPRESSION CHAMBER; A COMBUSTION AIR PASSAGE TO SAID COMPRESSION CHAMBER THROUGH SAID CRANKCASE; SAID STUFFING BLOCK HAVING A CENTRAL BORE FOR PASSAGE OF THE PISTON ROD, SAID BORE COMPRISING THE SOLE GUIDE FOR SAID PISTON ROD.
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |