US3221846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crossing beam
Assignee: DONN PRODUCTS Inc
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Filing: 1962-09-07
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Granted: 1965-12-07
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Expires: 1982-09-07
Abstract
No abstract record available.
Inventors
- 👤 Donald A Brown
- 👤 Jr Lucien R Downing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:37
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/122; Y; Y10; Y10S; Y10S52/00; Y10S52/05; Y10T; Y10T24/00; Y10T24/45; Y10T24/45005; Y10T403/00; Y10T403/44; Y10T403/447
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A BEAM MEMBER RELEASABLY DISPOSED IN END-TO-END INTERLOCKED RELATION WITH A CORRESPONDINGLY CONFIGURED CONFRONTING BEAM MEMBER, SAID BEAM INCLUDING IN COMBINATION: (A) A WEB HAVING PARALLEL MARGINAL EDGES; (B) A LATERALLY EXTENDING FLANGE ALONG AT LEAST ONE OF SAID MARGINAL EDGES; (C) A TONGUE HAVING A BASE PORTION, A TIP PORTION, AND AN INTERMEDIATE PORTION JOINING SAID TIP PORTION WITH SAID BASE PORTION, SAID TONGUE FORMED AT LEAST ONE EXTREMITY OF SAID WEB AND JOINED THERETO AT ITS BASE AND PROJECTING GENERALLY IN THE DIRECTION OF THE PLANE OF THE WEB, SAID BASE AND INTERMEDIATE PORTIONS LYING SUBSTANTIALOY IN THE PLANE OF THE WEB, SAID TIP PORTION PROJECTING FROM THE PLANE OF SAID INTERMEDIATE PORTION; AND (D) A TONGUE TIP RECEIVING LOUVER PROJECTING IN THE SAME DIRECTION AS SAID TIP PORTION AND FORMED IN SAID WEB ADJACENT THE BASE OF SAID TONGUE AND RECEIVING THE TIP OF THE TONGUE OF SAID CORRESPONDINGLY CONFIGURED CONFRONTING BEAM WHEN SAID BEAMS ARE IN INTERLOCKED RELATION.
Claim 2
Dependent Claim
162 words
A BEAM MEMBER RELEASABLY DISPOSED IN END-TO-END INTERLOCKED RELATION WITH A CORRESPONDINGLY CONFIGURED CONFRONTING BEAM MEMBER, SAID BEAM INCLUDING IN COMBINATION: (A) A WEB HAVING PARALLEL MARGINAL EDGES; (B) A LATERALLY EXTENDING FLANGE ALONG AT LEAST ONE OF SAID MARGINAL EDGES; (C) A TONGUE HAVING A BASE PORTION, A TIP PORTION, AND AN INTERMEDIATE PORTION JOINING SAID TIP PORTION WITH SAID BASE PORTION, SAID TONGUE FORMED AT LEAST ONE EXTREMITY OF SAID WEB AND JOINED THERETO AT ITS BASE AND PROJECTING GENERALLY IN THE DIRECTION OF THE PLANE OF THE WEB, SAID BASE AND INTERMEDIATE PORTIONS LYING SUBSTANTIALOY IN THE PLANE OF THE WEB, SAID TIP PORTION PROJECTING FROM THE PLANE OF SAID INTERMEDIATE PORTION; AND (D) A TONGUE TIP RECEIVING LOUVER PROJECTING IN THE SAME DIRECTION AS SAID TIP PORTION AND FORMED IN SAID WEB ADJACENT THE BASE OF SAID TONGUE AND RECEIVING THE TIP OF THE TONGUE OF SAID CORRESPONDINGLY CONFIGURED CONFRONTING BEAM WHEN SAID BEAMS ARE IN INTERLOCKED RELATION.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |