US3200801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve lifter
Assignee: Motors Liquidation Co
•
Filing: 1964-03-11
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Granted: 1965-08-17
•
Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 Dornbos John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:21
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49247
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
A HYDRAULIC VALVE LIFTER COMPRISING A TWO-PART TUBULAR BODY, THE FIRST OF SAID PARTS BEING FORMED OF A FERROUS ALLOY HAVING LESS THAN 8%, BY WEIGHT, TOTAL ALLOY CONTENT AND LESS THAN ABOUT 0.8%, BY WEIGHT, CAR BON, THE SECOND OF SAID PARTS BEING FORMED OF A FERROUS ALLOY HAVING AT LEAST ABOUT 10%, BY WEIGHT, CHROMIUM, THE SECOND PART HAVING AN OUTER CIRCUMFERNCE BARZED TO AN INNER CIRCUMFERENCE OF THE FIRST PART AT ONE END THEREOF, AN ALLOY CAST IRON END CLOSURE IMPERFORATELY SECURED TO THE OTHER END OF THE FIRST PART, AND A STAINLESS STEEL PLUNGER DISPOSED WITHIN THE SECOND PART IN WORKING RELATIONSHIP THEREWITH.
References Cited (Backward Citations)
US1582883A
Cited
US1747490A
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US1973855A
Cited
US2759249A
Cited
US2845914A
Cited
GB827315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |