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US2430772A
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Removable sash construction
Assignee: Individual
•
Filing: 1944-09-02
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Granted: 1947-11-11
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Expires: 1964-09-02
Abstract
No abstract record available.
Inventors
- 👤 Harry A Kammerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:55
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4446; E06B2003/4492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1022719A
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US1506960A
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US1765442A
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US1908270A
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US1998315A
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US2156964A
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US2177463A
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US2288558A
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US2303129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |