US3450859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for heating keys for defrosting frozen locks
Assignee: Individual
•
Filing: 1967-01-13
•
Granted: 1969-06-17
•
Expires: 1987-01-13
Abstract
No abstract record available.
Inventors
- 👤 Horst Brucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:15
CPC Classifications
H; H05; H05B; H05B3/00; A; A45; A45C; A45C11/00; A45C11/32; A45C11/321; A45C11/327; A45C11/328; E; E05; E05B; E05B17/00; E05B17/0016; H05B2214/00; H05B2214/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |