US3524616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base for an upright for forming a stand
Assignee: Individual
•
Filing: 1968-05-29
•
Granted: 1970-08-18
•
Expires: 1988-05-29
Abstract
No abstract record available.
Inventors
- 👤 Howard J Marschak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:26
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/40; A47B57/42; A47B57/425; A47F; A47F5/00; A47F5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1591110A
Cited
US2209650A
Cited
US2919878A
Cited
US3080067A
Cited
US3281102A
Cited
FR1377485A
Cited
US3325017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |