US2447401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spreading tool for reshaping deformed automobile bodies
Assignee: HK Porter Inc
•
Filing: 1945-03-02
•
Granted: 1948-08-17
•
Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 William H Ferguson
- 👤 Harry C Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:57
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US562791A
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US57447A
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US887103A
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US1035974A
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US1453608A
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US2009829A
Cited
US2296173A
Cited
US2262385A
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US2341278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |