US2478102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure apparatus for successively clamping and deforming tube ends
Assignee: Parker Appliance Co
•
Filing: 1944-12-26
•
Granted: 1949-08-02
•
Expires: 1964-12-26
Abstract
No abstract record available.
Inventors
- 👤 Henry E Hull
- 👤 Theodore H Rote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:22
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17564; Y10T279/17572; Y10T279/17589
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US766227A
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US871379A
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US989805A
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US1766098A
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US1943089A
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US2015685A
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US2070898A
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US2176188A
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US2326541A
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US2394841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |