US3030653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for keeping a wing of a door open at a certain angle of aperture
Assignee: Aufzuge A G
•
Filing: 1960-05-05
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Granted: 1962-04-24
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Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 Eiholzer Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:32
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/08; E05C17/085; E05C17/12; E05C17/24; E05C17/28; Y; Y10; Y10T; Y10T292/00; Y10T292/28; Y10T292/305
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) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |