Patent US2334760A successfully refreshed from Google Patents.
Patent US2628175A successfully refreshed from Google Patents.
US2628175A
Expired / Lapsed
US
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Coated sheet metal
Assignee: Colin Stewart Ltd
•
Filing: 1949-08-16
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Granted: 1953-02-10
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Expires: 1969-08-16
Abstract
No abstract record available.
Inventors
- 👤 Sidney G Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:39
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; H; H01; H01B; H01B3/00; H01B3/02; H01B3/10; C04B2111/00; C04B2111/00474; C04B2111/00482; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1881180A
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US1742794A
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US1750305A
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US2261260A
Cited
US2287410A
Cited
US2322667A
Cited
US2429946A
Cited
US2410954A
Cited
US2466145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |