US2895728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door operating mechanism
Assignee: Individual
•
Filing: 1953-01-30
•
Granted: 1959-07-21
•
Expires: 1973-01-30
Abstract
No abstract record available.
Inventors
- 👤 Edelman Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:11
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2031226A
Cited
US2118930A
Cited
US2149177A
Cited
US2312306A
Cited
US2425312A
Cited
US2589478A
Cited
US2572785A
Cited
US2588879A
Cited
US2695977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |