US3094200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Release device for hold open door closers
Assignee: Schlage Lock Co LLC
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Filing: 1960-11-21
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Granted: 1963-06-18
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Schlage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:28
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/22; E05F3/221; E05F1/00; E05F1/002; E05F1/006; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/404; E05Y2201/41; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |