Patent US2906259A successfully refreshed from Google Patents.
US2906259A
Expired / Lapsed
US
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Variable pressure cushion system
Assignee: Individual
•
Filing: 1956-05-22
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Granted: 1959-09-29
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Expires: 1976-05-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Robin Adair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:26
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002; A61G7/015; A61G7/05; A61G7/057; A61G7/0573; Y; Y10; Y10S; Y10S5/00; Y10S5/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |