US3081066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic elevating and prying apparatus
Assignee: Individual
•
Filing: 1961-03-30
•
Granted: 1963-03-12
•
Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 Stephen A Murawski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:17
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/42; A; A62; A62B; A62B3/00; A62B3/005; B66F3/36; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53683
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A COMBINED HYDRAULIC ELEVATING AND PRYING APPARATUS COMPRISING A BASE MEMBER, AN UPRIGHT SLEEVE MOUNTED ON SAID BASE MEMBER, A RAM CYLINDER RECIPROCABLY MOUNTED WITHIN SAID UPRIGHT SLEEVE, A SLEEVE FREELY FITTED ABOUT SAID UPRIGHT SLEEVE FOR RECIPROCATING MOVEMENTS SIMULTANEOUSLY WITH SAID RAM CYLINDER, BALL BEARING MEMBERS INTERPOSED BETWEEN SAID UPRIGHT SLEEVE AND SAID FREELY FITTED SLEEVE, SAID BASE MEMBER HAVING A PAIR OF SPACED PARALLEL JAW MEMBERS FORMING A LATERAL EXTENSION OF SAID BASE MEMBER, A JAW MEMBER CARRIED BY SAID FREELY FITTED SLEEVE AND NORMALLY OCCUPYING A POSITION BETWEEN SAID SPACED JAW MEMBERS, AN HYDRAULIC UNIT HAVING A FLEXIBLE HOSE CONNECTED TO A FLUID INLET FORMED IN SAID BASE MEMBER FOR DISCHARGE OF FLUID BENEATH SAID RAM CYLINDER, A THREADED STUD ON SAID BASE MEMBER AND SAID HYDRAULIC UNIT BEING SWIVELLY AND DETACHABLY CONNECTED TO SAID THREADED STUD.
Claim 2
Dependent Claim
140 words
A COMBINED HYDRAULIC ELEVATING AND PRYING APPARATUS COMPRISING A BASE MEMBER, AN UPRIGHT SLEEVE MOUNTED ON SAID BASE MEMBER, A RAM CYLINDER RECIPROCABLY MOUNTED WITHIN SAID UPRIGHT SLEEVE, A SLEEVE FREELY FITTED ABOUT SAID UPRIGHT SLEEVE FOR RECIPROCATING MOVEMENTS SIMULTANEOUSLY WITH SAID RAM CYLINDER, BALL BEARING MEMBERS INTERPOSED BETWEEN SAID UPRIGHT SLEEVE AND SAID FREELY FITTED SLEEVE, SAID BASE MEMBER HAVING A PAIR OF SPACED PARALLEL JAW MEMBERS FORMING A LATERAL EXTENSION OF SAID BASE MEMBER, A JAW MEMBER CARRIED BY SAID FREELY FITTED SLEEVE AND NORMALLY OCCUPYING A POSITION BETWEEN SAID SPACED JAW MEMBERS, AN HYDRAULIC UNIT HAVING A FLEXIBLE HOSE CONNECTED TO A FLUID INLET FORMED IN SAID BASE MEMBER FOR DISCHARGE OF FLUID BENEATH SAID RAM CYLINDER, A THREADED STUD ON SAID BASE MEMBER AND SAID HYDRAULIC UNIT BEING SWIVELLY AND DETACHABLY CONNECTED TO SAID THREADED STUD.
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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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |