US3089473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical tappet
Assignee: Johnson Products Inc
•
Filing: 1962-02-01
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Granted: 1963-05-14
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Expires: 1982-02-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Kueny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:03
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A LIGHTWEIGHT MECHANICAL TAPPET COMPRISING: A FOOT PORTION INCLUDING AN END CAM FACE; A CENTRAL ALIGNMENT PORTION HAVING A PERIPHERAL SURFACE ADAPTED TO MAINTAIN THE TAPPET ALIGNED IN THE LOWER PORTION OF AN ENGINE TAPPET BORE; A HEAD PORTION HAVING AN END PUSH ROD SEAT AND A PERIPHERAL SURFACE ADAPTED TO MAINTAIN THE TAPPET ALIGNED IN THE UPPER PORTION OF AN ENGINE TAPET BORE; A NECK BETWEEN SAID HEAD PORTION OF AN ENGINE TAPPET BORE; A NECK A SMALLER CROSS-SECTIONAL WIDTH THAN SAID HEAD AND CENTRAL PORTIONS; AND A PORTION BETWEEN SAID CENTRAL PORTION AND SAID FOOT PORTION HAVING A SMALLER CROSS-SECTIONAL WIDTH THAN SAID CENTRAL AND FOOT PORTIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |