US3081850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal construction element
Assignee: Kawneer Co Inc
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Filing: 1962-07-30
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Granted: 1963-03-19
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Hubbard S Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:08
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/5807; E06B3/5821; E06B3/5828
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A CONSTRUCTION ELEMENT COMPRISING A FACE PORTION; SEAL RETAINING MEANS EXTENDING FROM THE EDGES OF SAID FACE PORTION; A MAIN WEB PORTION PERPENDICULAR TO THE FACE PORTION INTERMEDIATE SAID END LEGS AND EXTENDING IN THE SAME DIRECTION AS SAID SEAL RETAINING MEANS, THE END OF SAID MAIN WEB PORTION REMOTE FROM SAID FACE PORTION FORMING A LATERALLY EXTENDING TONGUE; AND AN L-SHAPED AUXILIARY WEB PORTION HAVING A SHORT LEG AND A LONG LEG, SAID SHORT LEG BEING FORMED INTEGRAL WITH AND GENERALLY
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |