Patent US2983563A successfully refreshed from Google Patents.
US2983563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: Reynolds Metals Co
•
Filing: 1960-07-07
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Granted: 1961-05-09
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Expires: 1980-07-07
Abstract
No abstract record available.
Inventors
- 👤 John O Mclean
- 👤 Roger H Hendrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:41
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/10; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PISTON FOR AN INTERNAL COMBUSTION ENGINE, SAID PISTON HAVING AN ALUMINUM ALLOY SKIRT, AND INTERMEDIATE COATING OF MOLYBDENUM ADHERING TO SAID SKIRT, AND AN EXTERIOR COATING OF A NICKEL STEEL ADHERING TO SAID MOLYBDENUM COATING.
Claim 2
Dependent Claim
36 words
A PISTON FOR AN INTERNAL COMBUSTION ENGINE, SAID PISTON HAVING AN ALUMINUM ALLOY SKIRT, AND INTERMEDIATE COATING OF MOLYBDENUM ADHERING TO SAID SKIRT, AND AN EXTERIOR COATING OF A NICKEL STEEL ADHERING TO SAID MOLYBDENUM COATING.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |