Patent US3194366A successfully refreshed from Google Patents.
US3194366A
Expired / Lapsed
US
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Self-braking driving device for an operating shaft
Assignee: Hunter Douglas International Quebec Ltd
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Filing: 1962-06-11
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Granted: 1965-07-13
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Hensel Erich Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:44
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/307; E06B9/32; E06B9/322; E06B9/56; E06B9/68; E06B9/76; E06B9/80; E06B9/82; E06B2009/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |