Patent US4422069A successfully refreshed from Google Patents.
US2640232A
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US
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Storm window construction
Assignee: WIN SUM WINDOW CORP
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Filing: 1950-08-07
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Granted: 1953-06-02
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Expires: 1970-08-07
Abstract
No abstract record available.
Inventors
- 👤 Lester F Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:36
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/976; E06B3/9765; E06B3/04; E06B3/26; E06B3/2605; E06B2003/2615
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2000511A
Cited
US1934546A
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US2003982A
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US2151231A
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US2246075A
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US2384929A
Cited
US2541948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |