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US2737235A
Expired / Lapsed
US
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Venetian blind
Assignee: Storen und Maschinenfabrik Emil Schenker AG
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Filing: 1953-03-19
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Granted: 1956-03-06
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Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Hediger Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:12
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2276716A
Cited
US2579144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |