US3039758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Return-spring system in a pressure-fluid cylinder
Assignee: Individual
•
Filing: 1957-06-19
•
Granted: 1962-06-19
•
Expires: 1977-06-19
Abstract
No abstract record available.
Inventors
- 👤 Gratzmuller Jean Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:12
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/26; B60T8/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB169896A
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US1825093A
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US2315816A
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US2241193A
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US2355520A
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US2396448A
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US2563370A
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US2756014A
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US2783039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |