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Patent US2628418A successfully refreshed from Google Patents.
US2628418A
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Method of forming multiple segment tanks
Assignee: Mcnamar Boiler & Tank Co
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Filing: 1949-04-04
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Granted: 1953-02-17
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Expires: 1969-04-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Branson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:00
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1428060A
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US2139682A
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US2073684A
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US2171972A
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Cited
US2503190A
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US2503191A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |