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US2610667A
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US
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Hydraulic corrugating machine
Assignee: Robertshaw Controls Co
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Filing: 1947-07-02
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Granted: 1952-09-16
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Expires: 1967-07-02
Abstract
No abstract record available.
Inventors
- 👤 Louis M Puster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:52
CPC Classifications
B; B21; B21D; B21D15/00; B21D15/04; B21D15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1880184A
Cited
US2028150A
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US2221539A
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US2217799A
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US2307544A
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US2301028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |