US3175474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure device for hydraulic cylinder or the like
Assignee: Individual
•
Filing: 1961-02-15
•
Granted: 1965-03-30
•
Expires: 1981-02-15
Abstract
No abstract record available.
Inventors
- 👤 Eickmann Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:07
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A CLOSURE DEVICE COMPRISING A BODY FORMED WITH A BORE HAVING AN INNER CYLINDRICAL SURFACE; A CLOSURE MEMBER INCLUDING A FITTING PART HAVING AN OUTER CYLINDRICAL SURFACE HAVING THE SAME DIAMETER AS SAID INNER SURFACE AND BEING IN CONTACT WITH THE SAME, SAID BODY AND CLOSURE MEMBER BEING FORMED WITH AT LEAST TWO GROOVES, AT LEAST ONE OF SAID GROOVES EXTENDING FROM SAID INNER SURFACE INTO SAID BODY AND THE OTHER OF SAID GROOVES EXTENDING INTO SAID CLOSURE MEMBER, SAID CLOSURE MEMBER INCLUDING MEANS
Claim 2
Dependent Claim
84 words
A CLOSURE DEVICE COMPRISING A BODY FORMED WITH A BORE HAVING AN INNER CYLINDRICAL SURFACE; A CLOSURE MEMBER INCLUDING A FITTING PART HAVING AN OUTER CYLINDRICAL SURFACE HAVING THE SAME DIAMETER AS SAID INNER SURFACE AND BEING IN CONTACT WITH THE SAME, SAID BODY AND CLOSURE MEMBER BEING FORMED WITH AT LEAST TWO GROOVES, AT LEAST ONE OF SAID GROOVES EXTENDING FROM SAID INNER SURFACE INTO SAID BODY AND THE OTHER OF SAID GROOVES EXTENDING INTO SAID CLOSURE MEMBER, SAID CLOSURE MEMBER INCLUDING MEANS
References Cited (Backward Citations)
US2081040A
Cited
US2631906A
Cited
US2533531A
Cited
US2673130A
Cited
US2757993A
Cited
US2757947A
Cited
US2776172A
Cited
US2956549A
Cited
US2881037A
Cited
US2890917A
Cited
US2934040A
Cited
US2982590A
Cited
US3049370A
Cited
US3072104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |