US2882688A
Expired / Lapsed
US
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Excess-pressure means for multicylinder hydraulic systems
Assignee: Schloemann AG
•
Filing: 1955-01-17
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Granted: 1959-04-21
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Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 Billen Peter
- 👤 Linnerz Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:28
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/24; B21; B21C; B21C31/00; F; F15; F15B; F15B11/00; F15B11/02; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20576; F15B2211/50; F15B2211/505; F15B2211/50563; F15B2211/515; F15B2211/5153; F15B2211/5155; F15B2211/52; F15B2211/528; F15B2211/57; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; F15B2211/71; F15B2211/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US907077A
Cited
US2153637A
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US2270943A
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US2572749A
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US2616259A
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US2636350A
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GB698344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |