Patent US2284759A successfully refreshed from Google Patents.
US2284759A
Expired / Lapsed
US
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Sash and frame construction
Assignee: Individual
•
Filing: 1940-06-04
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Granted: 1942-06-02
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Expires: 1960-06-04
Abstract
No abstract record available.
Inventors
- 👤 Judson C Murphy
- 👤 Howard B Coldren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:10
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4446
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) | 1945-06-01 | 1945-12-01 | 1946-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-01 | 1949-12-01 | 1950-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-01 | 1953-12-01 | 1954-06-02 | $7700.00 | Window Closed / Lapsed |