Patent US1697583A successfully refreshed from Google Patents.
Patent US3591994A successfully refreshed from Google Patents.
US3591994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open floor support
Assignee: Individual
•
Filing: 1968-12-23
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Granted: 1971-07-13
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Expires: 1988-12-23
Abstract
Abstract This invention relates to an open support for supporting the perforated floor of the grain-drying bin, the support having a base and a floor-receiving member substantially identical in outline, the base and floor-receiving member being horizontally disposed and vertically spaced, and a plurality of struts connecting the base to the floor-receiving member at the corners thereof.
Inventors
- 👤 Vincent B Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:12
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/74; B65D88/742
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A floor support as defined in claim 1 wherein each member includes longitudinally extended corrugations formed therein.
Claim 2
Dependent Claim
39 words
A floor support as defined in claim 1 wherein at least one of said struts extend upwardly and beyond said truss means, each of said upward extensions having a notch formed therein for receiving a portion of the floor.
References Cited (Backward Citations)
US2475103A
Cited
FR984880A
Cited
US2593424A
Cited
US2743487A
Cited
US2818009A
Cited
US2901960A
Cited
FR1216471A
Cited
US3094745A
Cited
US3283459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |