Patent US2539843A successfully refreshed from Google Patents.
Patent US2598344A successfully refreshed from Google Patents.
US2598344A
Expired / Lapsed
US
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Apparatus for making metal strips
Assignee: Individual
•
Filing: 1948-07-27
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Granted: 1952-05-27
•
Expires: 1968-07-27
Abstract
No abstract record available.
Inventors
- 👤 Robert M Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/18; C23C4/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1612737A
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GB254517A
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US1956220A
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US2129702A
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US2129703A
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US2061107A
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US2171599A
Cited
US2285740A
Cited
US2290286A
Cited
US2281634A
Cited
US2414923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |