US3199929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding surface protection
Assignee: Reynolds Metals Co
•
Filing: 1960-12-05
•
Granted: 1965-08-10
•
Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 John O Mclean
- 👤 William B Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:51
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/10; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN AN INTERNAL COMBUSTION ENGINE, AN ALUMINUM PISTON MEMBER HAVING A SLIDABLE CONTACT SURFACE, AN ALUMINUM CYLINDER WALL MEMBER HAVING A SLIDABLE CONTACT SURFACE SLIDABLE CONTACTED BY THE SLIDABLE CONTACT SURFACE OF SAID ALUMINUM PISTON MEMBER, THE SLIDABLE CONTACT SURFACE OF ONE OF SAID MEMBERS BEING MADE WITH A STRUCTURAL ADHESIVE CONTAINING A CURING AGENT ADHESIVELY SE-
Claim 2
Dependent Claim
57 words
IN AN INTERNAL COMBUSTION ENGINE, AN ALUMINUM PISTON MEMBER HAVING A SLIDABLE CONTACT SURFACE, AN ALUMINUM CYLINDER WALL MEMBER HAVING A SLIDABLE CONTACT SURFACE SLIDABLE CONTACTED BY THE SLIDABLE CONTACT SURFACE OF SAID ALUMINUM PISTON MEMBER, THE SLIDABLE CONTACT SURFACE OF ONE OF SAID MEMBERS BEING MADE WITH A STRUCTURAL ADHESIVE CONTAINING A CURING AGENT ADHESIVELY SE-
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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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |