Patent US2815993A successfully refreshed from Google Patents.
US2815993A
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Piston and connecting rod assembly for internal combustion engines
Assignee: Schweitzer & Hussman
•
Filing: 1954-11-26
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Granted: 1957-12-10
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Expires: 1974-11-26
Abstract
No abstract record available.
Inventors
- 👤 Paul H Schweitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:34
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32893; Y10T74/00; Y10T74/21; Y10T74/2142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1921607A
Cited
US2379359A
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US2372050A
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US2566080A
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US2694607A
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US2563371A
Cited
US2687931A
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US2687930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |