US3043584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed opening and closing device
Assignee: Individual
•
Filing: 1959-11-04
•
Granted: 1962-07-10
•
Expires: 1979-11-04
Abstract
No abstract record available.
Inventors
- 👤 Kielhorn Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:31
CPC Classifications
B; B66; B66B; B66B13/00; B66B13/02; F; F16; F16H; F16H19/00; E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05F15/635; E05F15/641; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/606; E05Y2201/618; E05Y2201/622; E05Y2201/674; E05Y2800/00; E05Y2800/20; E05Y2800/23; E05Y2800/232; E05Y2800/40; E05Y2800/43; E05Y2900/00; E05Y2900/10; E05Y2900/104; E05Y2900/13; E05Y2900/132; E05Y2900/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US676833A
Cited
US772917A
Cited
US2298675A
Cited
US2572196A
Cited
US2608872A
Cited
US2632258A
Cited
US2826925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |