US3144137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacker crane
Assignee: Manning Maxwell & Mooer Inc
•
Filing: 1962-01-30
•
Granted: 1964-08-11
•
Expires: 1982-01-30
Abstract
No abstract record available.
Inventors
- 👤 Robert L Valliere
- 👤 Walter A Paulssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:28
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN A STACKER CRANE, A TRAVELLING BRIDGE, A TROLLEY TO TRANSVERSE SAID BRIDGE, A MAST DEPENDING FROM SAID TROLLEY AND COMPRISING A PLURALITY OF HOLLOW TELESCOPING SECTIONS, LOAD ENGAGING MEANS ON THE LOWER SECTION OF SAID MAST, A HOIST DRUM ON SAID TROLLEY, A LIFT ROPE BETWEEN SAID DRUM AND SAID LOAD ENGAGING MEANS AND EXTENDING THROUGH THE SECTIONS OF SAID MAST, AND
Claim 2
Dependent Claim
63 words
IN A STACKER CRANE, A TRAVELLING BRIDGE, A TROLLEY TO TRANSVERSE SAID BRIDGE, A MAST DEPENDING FROM SAID TROLLEY AND COMPRISING A PLURALITY OF HOLLOW TELESCOPING SECTIONS, LOAD ENGAGING MEANS ON THE LOWER SECTION OF SAID MAST, A HOIST DRUM ON SAID TROLLEY, A LIFT ROPE BETWEEN SAID DRUM AND SAID LOAD ENGAGING MEANS AND EXTENDING THROUGH THE SECTIONS OF SAID MAST, AND
References Cited (Backward Citations)
US951304A
Cited
US1697538A
Cited
US2847131A
Cited
DE1005903B
Cited
US2933198A
Cited
US2947426A
Cited
US2982425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |