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US2777194A
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Method of forming fluid pressure seal between elements of a container having an interior coating of porcelain enamel
Assignee: John Wood Co
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Filing: 1954-08-09
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Granted: 1957-01-15
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Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 Robert H Ashley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:21
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/02; C; C23; C23D; C23D5/00; F16L41/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T29/49904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2229526A
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US2378801A
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US2348696A
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US2430083A
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US2437127A
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US2636408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |