Patent US3444649A successfully refreshed from Google Patents.
US3444649A
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US
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Window raising device
Assignee: DBA SA
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Filing: 1968-01-16
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Granted: 1969-05-20
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Expires: 1988-01-16
Abstract
No abstract record available.
Inventors
- 👤 Charles Rivolier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:26
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/38; E05F11/48; E05F11/481; E05F11/483; E05F11/485; E05F11/486; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/55; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2045; Y10T74/20462
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1827746A
Cited
US3014716A
Cited
GB979815A
Cited
US3280509A
Cited
US3235248A
Cited
GB983444A
Cited
US3281991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |