Patent US3326029A successfully refreshed from Google Patents.
US3326029A
Expired / Lapsed
US
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Hydraulic press
Assignee: HK Porter Inc
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Filing: 1964-08-05
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Granted: 1967-06-20
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:22
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/04; H01R43/042; H01R43/0427
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PISTON-OPERATED TOOL OF THE TYPE DESCRIBED COMPRISING THE COMBINATION OF: A FIRST TOOL MEMBER ADAPTED TO BE FORCED AGAINST ONE SIDE OF A WORKPIECE, A PISTON RECIPROCALLY DISPOSED WITHIN A CYLINDER AND OPERATIVELY CONNECTED TO SAID FIRST TOOL MEMBER, MEANS FOR EXTENDING AND RETRACTING SAID PISTON TO OPERATE SAID FIRST TOOL MEMBER, MEANS FOR SUPPORTING SAID WORKPIECE DURING EXTENSION OF SAID PISTON INCLUDING A SECOND TOOL MEMBER POSITIONED TO ENGAGE THE OTHER SIDE OF SAID WORKPIECE, SAID SEC-
Claim 2
Dependent Claim
79 words
A PISTON-OPERATED TOOL OF THE TYPE DESCRIBED COMPRISING THE COMBINATION OF: A FIRST TOOL MEMBER ADAPTED TO BE FORCED AGAINST ONE SIDE OF A WORKPIECE, A PISTON RECIPROCALLY DISPOSED WITHIN A CYLINDER AND OPERATIVELY CONNECTED TO SAID FIRST TOOL MEMBER, MEANS FOR EXTENDING AND RETRACTING SAID PISTON TO OPERATE SAID FIRST TOOL MEMBER, MEANS FOR SUPPORTING SAID WORKPIECE DURING EXTENSION OF SAID PISTON INCLUDING A SECOND TOOL MEMBER POSITIONED TO ENGAGE THE OTHER SIDE OF SAID WORKPIECE, SAID SEC-
References Cited (Backward Citations)
US2139639A
Cited
US2375445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |