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US3618261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-hung door assembly
Assignee: Harvard Industries Inc
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Filing: 1970-05-27
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Granted: 1971-11-09
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Expires: 1990-05-27
Abstract
Abstract A PREASSEMBLED DOOR HAVING AN OUTER FRAME WHICH CONSISTS OS A TOP Z-BAR OR HEADER AND SIDE Z-BARS AND HAVING A DOOR HINGED TO ONE OF THE SIDE Z-BARS. THE OTHER SIDE Z-BAR IS CONNECTED TO THE DOOR BY SEVERABLE FASTENING MEMBERS AND IS SPACED FROM THE DOOR BY REMOVABLE SPACER MEMBERS. THE SIDE Z-BARS ARE FIXED AT THEIR UPPER ENDS TO THE HEADER BY TABS WHICH PROJECT DOWNWARDLY FROM THE HEADER AND BY STRIPS OF PRESSURE-SENSITIVE TAPE WHICH EXTEND AROUND THE INTERSECTION OF THE OUTSIDE SURFACES OF THE PORTIONS OF THE TOP Z-BAR AND THE SIDE Z-BARS WHICH FORM LINTEL AND JAMB SURFACES FOR THE DOOR.
Inventors
- 👤 Richard L Torbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:28
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/988; E06B3/04; E06B3/28
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |