US3168135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding door
Assignee: Individual
•
Filing: 1962-11-30
•
Granted: 1965-02-02
•
Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Milton W Beifuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:52
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/481; E06B3/482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A FOLDING DOOR COMPRISING A PLURALITY OF ELONGATED WOOD PANELS DISPOSED SIDE BY SIDE, A SET OF LONGITUDINALLY SPACED ELONGED WOOD HINGE SLEEVES MOUNTED ALONG EACH SIDE OF EACH PANEL, THE SLEEVES BEING ONE-HALF ROUND SECTIONS OF MOLDING WITH THEIR FLAT SIDES AGAINST THE PANELS, THE SLEEVES HAVING COLLINEAR LONGITUDINAL CUTS ON THEIR FLAT SIDES, THE SLEEVES ALONG EACH SIDE OF A PANEL BEING DISPOSED TO MAKE INTERMESHING FITS BETWEEN ADJACENT SLEEVES ALONG THE ADJACENT SIDE OF AN ADJACENT PANEL, AND A SEPARATE ELONGATED HINGE PIN DISPOSED THROUGH THE COLLINEAR OPENINGS OF EACH INTERMESHING SET OF HINGE SLEEVES.
Claim 2
Dependent Claim
98 words
A FOLDING DOOR COMPRISING A PLURALITY OF ELONGATED WOOD PANELS DISPOSED SIDE BY SIDE, A SET OF LONGITUDINALLY SPACED ELONGED WOOD HINGE SLEEVES MOUNTED ALONG EACH SIDE OF EACH PANEL, THE SLEEVES BEING ONE-HALF ROUND SECTIONS OF MOLDING WITH THEIR FLAT SIDES AGAINST THE PANELS, THE SLEEVES HAVING COLLINEAR LONGITUDINAL CUTS ON THEIR FLAT SIDES, THE SLEEVES ALONG EACH SIDE OF A PANEL BEING DISPOSED TO MAKE INTERMESHING FITS BETWEEN ADJACENT SLEEVES ALONG THE ADJACENT SIDE OF AN ADJACENT PANEL, AND A SEPARATE ELONGATED HINGE PIN DISPOSED THROUGH THE COLLINEAR OPENINGS OF EACH INTERMESHING SET OF HINGE SLEEVES.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |