US3235039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curtain wall support system
Assignee: Johns Manville Corp
•
Filing: 1962-07-30
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Granted: 1966-02-15
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph R O'donnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:59
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/88; E04B2/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN A CURTAIN WALL CONSTRUCTION, (A) A PLURALITY OF SPACED VERTICAL SUPPORT BEAMS, (B) EACH BEAM COMPRISING A FRONT FLANGE CONNECTED TO A BACK FLANGE SPACED THEREFROM, (C) A PLURALITY OF PANELS, (D) THE VERTICAL SIDE EDGES OF EACH PANEL BEING DISPOSED BETWEEN THE FRONT AND BACK FLANGES OF SUCCESSIVE SUPPORT BEAMS, AND (E) A COMBINATION LOCKING AND SEALING GASKET ATTACHED TO EACH FRONT FLANGE AND EXTENDING BETWEEN THE BACK SURFACE OF THE FRONT FLANGE AND THE ADJACENT PANEL,
Claim 2
Dependent Claim
79 words
IN A CURTAIN WALL CONSTRUCTION, (A) A PLURALITY OF SPACED VERTICAL SUPPORT BEAMS, (B) EACH BEAM COMPRISING A FRONT FLANGE CONNECTED TO A BACK FLANGE SPACED THEREFROM, (C) A PLURALITY OF PANELS, (D) THE VERTICAL SIDE EDGES OF EACH PANEL BEING DISPOSED BETWEEN THE FRONT AND BACK FLANGES OF SUCCESSIVE SUPPORT BEAMS, AND (E) A COMBINATION LOCKING AND SEALING GASKET ATTACHED TO EACH FRONT FLANGE AND EXTENDING BETWEEN THE BACK SURFACE OF THE FRONT FLANGE AND THE ADJACENT PANEL,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |