Patent US3426367A successfully refreshed from Google Patents.
US3426367A
Expired / Lapsed
US
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Collapsible supporting structures
Assignee: Individual
•
Filing: 1967-06-22
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Granted: 1969-02-11
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Expires: 1987-06-22
Abstract
No abstract record available.
Inventors
- 👤 John G Bradford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:28
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/64; A47C17/645; A47C17/70; A47C17/705; A61; A61G; A61G1/00; A61G1/003; A61G1/013; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451; Y10T403/32459; Y10T403/34; Y10T403/341; Y10T403/345; Y10T403/346; Y10T403/60; Y10T403/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1347808A
Cited
US2394245A
Cited
US2770465A
Cited
US2745115A
Cited
US3110912A
Cited
US3104401A
Cited
US3336060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |