Patent US2851719A successfully refreshed from Google Patents.
US2851719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closer
Assignee: Emhart Industries Inc
•
Filing: 1955-02-11
•
Granted: 1958-09-16
•
Expires: 1975-02-11
Abstract
No abstract record available.
Inventors
- 👤 Benjamin S Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:26
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/04; E05F3/06; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; F; F16; F16B; F16B2200/00; F16B2200/40; F16B2200/403; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32368; Y10T403/32606; Y10T403/32614
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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |