Patent US2983256A successfully refreshed from Google Patents.
US2983256A
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US
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Multiple piston elliptical fluid cylinder
Assignee: Taylor Winfield Corp
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Filing: 1958-07-15
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Granted: 1961-05-09
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Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Melvin M Seeloff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:12
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1414; F15B15/1419; F15B11/00; F15B11/02; F15B11/028; F15B11/036; F15B11/0365
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |