Patent US3567275A successfully refreshed from Google Patents.
US3567275A
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US
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Convertible structure
Assignee: Individual
•
Filing: 1969-02-10
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Granted: 1971-03-02
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Expires: 1989-02-10
Abstract
Abstract A CONVERTIBLE STRUCTURE COMPRISING THREE PRIMARY COMPONENTS AND A MINIMUM NUMBER OF SECONDARY COMPONENTS THAT PERMITS THE CONSTRUCTION FROM A FIRST UTILITARIAN DEVICE INTO ONE OF SEVERAL OTHERS WITH ONLY AN INSIGNIFICANT NUMBER OF CHANGES.
Inventors
- 👤 Albert M Bukey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:59
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/10; A47D1/106; A47D1/002; A47D1/004; A47D1/06; A47D1/08; B; B60; B60N; B60N2/00; B60N2/24; B60N2/26; B60N2/28
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |