US3552077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spacer in a mullion wall construction
Assignee: Cyprus Amax Minerals Co
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Filing: 1969-04-14
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Granted: 1971-01-05
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Expires: 1989-04-14
Abstract
Abstract THERE IS PROVIDED A SPACER FOR USE WITH A WALL CONSTRUCTION OF THE GENERAL TYPE HAVING A HOLLOW VERTICAL MULLION AND INTERCONNECTING HORIZONTAL MULLIONS OR STRUCTURE ELEMENTS. THE VERTICAL MULLION INCLUDES A FILLER HAVING A GLAZING CHANNEL OF GENERALLY U-SHAPED SECTION FORMED THEREIN. THE SPACER INCLUDES A LONGITUDINALLY EXTENDING TOP CROSS BAS AND A LONGITUDINALLY BIFURCATED DOWNWARDLY DEPENDING BAR OF RESILIENT MATERIAL AND ADAPTED TO SNAP OVER A LEG OVER THE GLAZING CHANNEL SO AS TO PREVENT DEFLECTION OF THE FILLER SECTION INWARDLY RELATIVE TO THE VERTICAL MULLION.
Inventors
- 👤 James W Hemminger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:47
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/88; E04B2/96; E04B2/967
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |