US2816608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure fluid operated tool actuator
Assignee: Johnson Rubber Co
•
Filing: 1955-05-04
•
Granted: 1957-12-17
•
Expires: 1975-05-04
Abstract
No abstract record available.
Inventors
- 👤 John A Farmwald
- 👤 Smith M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:28
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/002; Y; Y10; Y10S; Y10S277/00; Y10S277/907; Y10T; Y10T83/00; Y10T83/869; Y10T83/8696; Y10T83/8699; Y10T83/8776; Y10T83/8785; Y10T83/8821; Y10T83/8858; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9428; Y10T83/9457; Y10T83/9488; Y10T83/949
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1436860A
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US2263778A
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US2238424A
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US2354291A
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US2353488A
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US2549818A
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FR58683E
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US2633197A
Cited
US2709570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |