US3294252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crane girders
Assignee: IHI Corp
•
Filing: 1963-12-03
•
Granted: 1966-12-27
•
Expires: 1983-12-03
Abstract
No abstract record available.
Inventors
- 👤 Hosoi Tadashi
- 👤 Kobayashi Kazuhide
- 👤 Kato Akira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:31
CPC Classifications
B; B66; B66C; B66C6/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN TRAVELLING CRANE APPARATUS WHEREIN GIRDER MEANS ARE PROVIDED TO SUPPORT A TROLLEY, LATERAL RUNWAY MEANS FOR SUPPORTING SAID GIRDER MEANS THEREBETWEEN, SAID GIRDER MEANS INCLUDING AT LEAST ONE PRIMARY CHORD MEMBER FOR ABSORBING VERTICAL FORCES APPLIED TO SAID GIRDER MEANS DURING OPERATION OF THE CRANE, SAID CHORD MEMBER EXTENDING ATHWART SAID LATERAL RUNWAY MEANS AND HAVING A FULLY EXPANDED HOLLOW SHELL STRUCTURE WHICH HAS A CONTINUOUSLY CURVED CROSS SECTION DEVOID OF ANGLES, TRACK MEANS SECURED TO EACH OF SAID CHORD MEMBER,TO FORM AN INTEGRAL PART THEREWITH AND EXTENDING SUB-
Claim 2
Dependent Claim
90 words
IN TRAVELLING CRANE APPARATUS WHEREIN GIRDER MEANS ARE PROVIDED TO SUPPORT A TROLLEY, LATERAL RUNWAY MEANS FOR SUPPORTING SAID GIRDER MEANS THEREBETWEEN, SAID GIRDER MEANS INCLUDING AT LEAST ONE PRIMARY CHORD MEMBER FOR ABSORBING VERTICAL FORCES APPLIED TO SAID GIRDER MEANS DURING OPERATION OF THE CRANE, SAID CHORD MEMBER EXTENDING ATHWART SAID LATERAL RUNWAY MEANS AND HAVING A FULLY EXPANDED HOLLOW SHELL STRUCTURE WHICH HAS A CONTINUOUSLY CURVED CROSS SECTION DEVOID OF ANGLES, TRACK MEANS SECURED TO EACH OF SAID CHORD MEMBER,TO FORM AN INTEGRAL PART THEREWITH AND EXTENDING SUB-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |