US3477176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic door holder
Assignee: HENRY W TANSLEY
•
Filing: 1968-07-15
•
Granted: 1969-11-11
•
Expires: 1988-07-15
Abstract
No abstract record available.
Inventors
- 👤 Henry W Tansley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:41
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/22; E05F3/221; E05F3/222; E05C; E05C17/00; E05C17/56; E05F3/04; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/21; E05Y2201/252; E05Y2201/254; E05Y2201/256; E05Y2201/262; E05Y2201/264; E05Y2201/40; E05Y2201/46; E05Y2201/462; E05Y2201/47; E05Y2201/474; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |