Patent US4385832A successfully refreshed from Google Patents.
US2394545A
Expired / Lapsed
US
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Tin plate manufacture
Assignee: Interchemical Corp
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Filing: 1942-08-28
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Granted: 1946-02-12
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Expires: 1962-08-28
Abstract
No abstract record available.
Inventors
- 👤 William F Grupe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:12
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/34; C23C2/36; C23C2/38; C23C2/003; C23C2/0034; C23C2/00342; C23C2/00344; C23C2/0035; C23C2/0036; C23C2/00361; C23C2/00362; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12396; Y10T428/12493; Y10T428/12708; Y10T428/12722
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-02-11 | 1949-08-13 | 1950-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-11 | 1953-08-13 | 1954-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-11 | 1957-08-13 | 1958-02-12 | $7700.00 | Window Closed / Lapsed |