Patent US2450508A successfully refreshed from Google Patents.
US2450508A
Expired / Lapsed
US
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Tin plate treatment
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1948-03-29
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Granted: 1948-10-05
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Expires: 1968-03-29
Abstract
No abstract record available.
Inventors
- 👤 Charles E Glock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:08
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/38; C25D9/00; C25D9/04; C25D9/08; Y; Y10; Y10S; Y10S205/00; Y10S205/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1827247A
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US1827204A
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US1954473A
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US1953998A
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US2215165A
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US2312076A
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US2327885A
Cited
GB558130A
Cited
US2424718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |