Patent US5240176A successfully refreshed from Google Patents.
Patent US3323660A successfully refreshed from Google Patents.
US3323660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lattice boom construction
Assignee: NORTHWEST ENGINEERING Co
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Filing: 1965-09-21
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Granted: 1967-06-06
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Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 Sr George S Allin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:11
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/64; B66C23/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
FOR USE IN CONNECTING LACING MEMBERS TO ANGLE IRON CHORDS IN A BOOM FRAMEWORK, A CONNECTOR COMPRISING A UNITARY BODY SHAPED TO CLOSELY FIT IN THE BOSOM OF A CHORD AND TO BE WELDED THERETO, SAID UNITARY BODY HAVING A PLURALITY OF OPENINGS THEREIN REMOTE FROM THE CHORD WELDS AND ADAPTED TO RECEIVE AND SECURE THE ENDS OF BOOM LACING MEMBERS.
Claim 2
Dependent Claim
61 words
FOR USE IN CONNECTING LACING MEMBERS TO ANGLE IRON CHORDS IN A BOOM FRAMEWORK, A CONNECTOR COMPRISING A UNITARY BODY SHAPED TO CLOSELY FIT IN THE BOSOM OF A CHORD AND TO BE WELDED THERETO, SAID UNITARY BODY HAVING A PLURALITY OF OPENINGS THEREIN REMOTE FROM THE CHORD WELDS AND ADAPTED TO RECEIVE AND SECURE THE ENDS OF BOOM LACING MEMBERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |