US3581332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airport gangway
Assignee: Aviolanda Maalschappij voor Vliegtuigbouw NV
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Filing: 1968-10-17
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Granted: 1971-06-01
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Expires: 1988-10-17
Abstract
Abstract AN AIRPORT GANGWAY CONSTITUTED BY TELESCOPING SECTIONS COMPRISING A REARMOST SECTION PIVOALLY CONNECTED TO A STATIONARY STRUCTURE, A FOREMOST SECTION, AND A PLURALITY OF INTERMEDIATE SECTIONS, ONE OF SAID INTERMEDIATE SECTIONS BEING SUPPORTED ON A TRAVELING CARRIAGE, AN DRIVE MEANS OPERATIVELY CONNECTED WITH THE GANGWAY SECTION FOR TELESCOPING THE SECTIONS INTO AND OUT OF EACH OTHER, SAID DRIVE MEANS BEING SO COORDINATED THAT THE MOVEMENTS BETWEEN ADJACENT PAIRS OF SECTIONS HAVE A PREDETERMINED RATIO TO EACH OTHER.
Inventors
- 👤 Nicolaas Gradus Jan Will Marle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:12
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/30; B64F1/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |