US2730775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple window sash unit or assembly
Assignee: Individual
•
Filing: 1952-07-24
•
Granted: 1956-01-17
•
Expires: 1972-07-24
Abstract
No abstract record available.
Inventors
- 👤 John E Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:30
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/92; E06B3/922; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/066; E05D15/0682; E05D15/0686; E05D15/08; E05F; E05F11/00; E05F11/53; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4654; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/684; E05Y2201/71; E05Y2201/722; E05Y2800/00; E05Y2800/26; E05Y2800/28; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; E05Y2900/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1062997A
Cited
US1067678A
Cited
US1269133A
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US1727188A
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US1923233A
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US2196591A
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US2589493A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |