US3389737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind for double glazed sash
Assignee: Rolscreen Co
•
Filing: 1965-12-07
•
Granted: 1968-06-25
•
Expires: 1985-12-07
Abstract
No abstract record available.
Inventors
- 👤 Bruce C Arnold
- 👤 Robert S Evers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:40
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US210129A
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US567216A
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US1121022A
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US2155985A
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US2207605A
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US2256369A
Cited
US2497824A
Cited
US2889591A
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US3032099A
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US3269453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |