Patent US3605342A successfully refreshed from Google Patents.
US3605342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous door column and door system for silos
Assignee: Individual
•
Filing: 1970-07-27
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Granted: 1971-09-20
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Expires: 1990-07-27
Abstract
Abstract FRAME STRUCTIRE FOR MOUNTING IN A DOOR OPENING THROUGH A SILO WALL EXTENDING VERTICALLY FOR THE GREATER PORTION OF THE HEIGHT OF THE SILOI COMPRISING VERTICALLY EXTENDING LATERALLY SPACED LONGITUDINAL FRAME MEMBERS CONNECTED BY VERTICAL SPACED HORIZONTAL CROSS FRAME MEMBERS AND OPPOSED LONGITUDINAL STOP FLANGES ON THE LONGITUDINAL FRAME MEMBERS. A PLURALITY OF REMOVABLE DOOR SECTIONS ARE DISPOSED IN END-TO-END ABUTTING ENGAGEMENT AND HELD AGAINST THE STOP FLANGES BY WEDGE ELEMENTS ENGAGING THE CROSS FRAME MEMBERS.
Inventors
- 👤 Robert F Koser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:41
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |