US3266377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston adder apparatus
Assignee: International Business Machines Corp
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Filing: 1964-11-13
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Granted: 1966-08-16
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Expires: 1984-11-13
Abstract
No abstract record available.
Inventors
- 👤 Hugo A Panissidi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:22
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/125; F15B11/16; F15B11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PISTON APPARATUS COMPRISING AT LEAST ONE PISTON CYLINDER, SAID PISTON CYLINDER INCLUDING FIRST AND SECOND FLUID FILLED CHAMBERS SEPARATED BY A CENTER MEMBER; A FIRST PISTON MOVABLY MOUNTED IN SAID FIRST CHAMBER AND A SECOND PISTON MOVABLY MOUNTED IN SAID SECOND CHAMBER; A FIRST PISTON ROD CONNECTED THROUGH THE END OF SAID FIRST CHAMBER TO SAID FIRST PISTON, SAID FIRST PISTON ROD BEING A FLUID FILLED TUBE, SAID FIRST PISTON ROD HAVING AN ORIFICE THEREIN PROVIDING A FLUID PATH TO SAID FIRST CHAMBER; A SECOND PISTON ROD CONNECTED THROUGH THE END OF SAID SECOND CHAMBER TO SAID SECOND PISTON, SAID SECOND
Claim 2
Dependent Claim
102 words
A PISTON APPARATUS COMPRISING AT LEAST ONE PISTON CYLINDER, SAID PISTON CYLINDER INCLUDING FIRST AND SECOND FLUID FILLED CHAMBERS SEPARATED BY A CENTER MEMBER; A FIRST PISTON MOVABLY MOUNTED IN SAID FIRST CHAMBER AND A SECOND PISTON MOVABLY MOUNTED IN SAID SECOND CHAMBER; A FIRST PISTON ROD CONNECTED THROUGH THE END OF SAID FIRST CHAMBER TO SAID FIRST PISTON, SAID FIRST PISTON ROD BEING A FLUID FILLED TUBE, SAID FIRST PISTON ROD HAVING AN ORIFICE THEREIN PROVIDING A FLUID PATH TO SAID FIRST CHAMBER; A SECOND PISTON ROD CONNECTED THROUGH THE END OF SAID SECOND CHAMBER TO SAID SECOND PISTON, SAID SECOND
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |