US2987011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor interchange
Assignee: PALMER BEE CO
•
Filing: 1958-02-03
•
Granted: 1961-06-06
•
Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Melmer Eric Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:37
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1865788A
Cited
US2040353A
Cited
US2344155A
Cited
US2527244A
Cited
US2635555A
Cited
US2580758A
Cited
US2660127A
Cited
US2688935A
Cited
US2868138A
Cited
US2868139A
Cited
US2875704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |