US3093081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping device
Assignee: New York Air Brake LLC
•
Filing: 1959-01-29
•
Granted: 1963-06-11
•
Expires: 1979-01-29
Abstract
No abstract record available.
Inventors
- 👤 Budzich Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:13
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2042; F04B1/2064; F04B1/22; F04B1/26; F04B1/30; F04B1/32; F04B1/324; F04B49/00; F04B49/007; F04B49/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN COMBINATION, A PLURALITY OF VARIABLE DISPLACEMENT PUMPS CONNECTED TO BE DRIVEN BY A COMMON SHAFT, EACH PUMP HAVING AN INLET PORT AND A DISCHARGE PORT; COMMON SUPPLY AND DELIVERY PASSAGES CONNECTED WITH THE INLET AND DISCHARGE PORTS, RESPECTIVELY; A DISPLACEMENT-CONTROLLING ELEMENT FOR EACH PUMP, EACH ELEMENT BEING SHIFTABLE BETWEEN MINIMUM AND MAXIMUM DISPLACEMENT-ESTABLISH-
Claim 2
Dependent Claim
54 words
IN COMBINATION, A PLURALITY OF VARIABLE DISPLACEMENT PUMPS CONNECTED TO BE DRIVEN BY A COMMON SHAFT, EACH PUMP HAVING AN INLET PORT AND A DISCHARGE PORT; COMMON SUPPLY AND DELIVERY PASSAGES CONNECTED WITH THE INLET AND DISCHARGE PORTS, RESPECTIVELY; A DISPLACEMENT-CONTROLLING ELEMENT FOR EACH PUMP, EACH ELEMENT BEING SHIFTABLE BETWEEN MINIMUM AND MAXIMUM DISPLACEMENT-ESTABLISH-
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |