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Patent US2838796A successfully refreshed from Google Patents.
US2838796A
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Method and apparatus for pressure curing of materials
Assignee: AO Smith Corp
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Filing: 1954-12-02
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Granted: 1958-06-17
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Expires: 1974-12-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:13
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/566; B29C53/80; B29C53/84; B29C53/845; B30; B30B; B30B5/00; B30B5/02; Y; Y10; Y10S; Y10S425/00; Y10S425/019
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |