US3713620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine supporting slab
Assignee: Individual
•
Filing: 1969-10-17
•
Granted: 1973-01-30
•
Expires: 1989-10-17
Abstract
Abstract A machine supporting slab formed of a rigid body of closed-cell foam resin material of high density covered by a metal sheath spanning the top and extending around the marginal edges of said body. Machine retaining means are anchored to said sheath.
Inventors
- 👤 G Tkach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:29
CPC Classifications
F; F16; F16M; F16M7/00
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |