US2432000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storm window
Assignee: F E SCHUMACHER Co
•
Filing: 1945-03-15
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Granted: 1947-12-02
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Expires: 1965-03-15
Abstract
No abstract record available.
Inventors
- 👤 Virgil F Espenschied
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:51
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)
US724556A
Cited
US839640A
Cited
US1743434A
Cited
US2173175A
Cited
US2343200A
Cited
US2379601A
Cited
US2365238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |