US2933308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible diaphragm fluid cylinder
Assignee: Dayton Rubber Co
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Filing: 1956-04-12
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Granted: 1960-04-19
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Expires: 1976-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Sanford A Mcgavern
- 👤 Bruce W Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:06
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/26; B60G11/27; F; F16; F16F; F16F9/00; F16F9/02; F16F9/04; F16F9/0445
Claims Analysis
Total Claims: 0
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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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |