US3167111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding door
Assignee: NEW CASTLE PRODUCTS Inc
•
Filing: 1962-12-11
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Granted: 1965-01-26
•
Expires: 1982-12-11
Abstract
No abstract record available.
Inventors
- 👤 Donald S Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/48; E06B3/481
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
191 words
IN A PLURALITY OF HINGEDLY INTERCONNECTED ELONGATED SHEET MEMBERS, THE CONSTRUCTION COMPRISING, ADJOINING LONGITUDINAL EDGES OF ADJACENT FIRST AND SECOND OF SAID SHEET MEMBERS EACH HAVING ALIGNED ALTERNATING LUGS AND RECESSES SPACED THEREALONG, EACH OF SAID LUGS HAVING A PROJECTION AT ONE END THEREOF AND A STRAIGHT EDGE AT THE OPPOSITE END THEREOF, ALL OF SAID PROJECTIONS ON SAID FIRST SHEET MEMBER EXTENDING IN ONE DIRECTION LONGITUDINALLY OF THE MEMBERS AND ALL OF SAID PROJECTIONS ON SAID SECOND SHEET MEMBER EXTENDING IN AN OPPOSITE DIRECTION LONGITUDINALLY OF THE MEMBERS, THE LUGS OF SAID FIRST SHEET MEMBER BEING RECEIVED IN THE CORRESPONDING RECESSES IN SAID SECOND SHEET MEMBER AND THE LUGS OF SAID SECOND SHEET MEMBER BEING RECEIVED IN THE CORRESPONDING RECESSES IN SAID FIRST SHEET MEMBER WITH THE STRAIGHT EDGES OF THE LUGS OF THE FIRST SHEET MEMBER RESPECTIVELY ABUTTING THE STRAIGHT EDGES OF THE LUGS OF THE SECOND SHEET MEMBERABD WITH THE PROJECTIONS OF THE LUGS OF THE FIRST SHEET MEMBER RESPECTIVELY INTERENGAGING THE PROJECTIONS OF THE LUGS OF THE SECOND SHEET MEMBER FOR FORMING A HINGED INTERLOCK BETWEEN SAID FIRST AND SECOND MEMBERS TO PERMIT FOLDING OF THE SAME.
References Cited (Backward Citations)
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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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |