US2854131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for de-clogging interstices of sheet-type conveyors
Assignee: Mount Hope Machinery Ltd
•
Filing: 1952-09-24
•
Granted: 1958-09-30
•
Expires: 1972-09-24
Abstract
No abstract record available.
Inventors
- 👤 Walter P Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
B; B65; B65G; B65G45/00; B65G45/10; D; D21; D21F; D21F1/00; D21F1/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US16430A
Cited
US1501721A
Cited
US1776419A
Cited
US2179187A
Cited
GB532265A
Cited
US2266309A
Cited
US2391178A
Cited
GB655213A
Cited
US2628709A
Cited
US2562949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |