US3497279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filing cabinets
Assignee: Art Steel Co Inc
•
Filing: 1968-02-27
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Granted: 1970-02-24
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Expires: 1988-02-27
Abstract
No abstract record available.
Inventors
- 👤 William Chovanec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:50
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/02; A47B47/03; A47B47/04; A47B47/05; A47B88/00; A47B88/40; A47B88/423; A47B88/43; A47B96/00; F; F16; F16B; F16B12/00; F16B12/02; A47B87/00; A47B87/02; A47B87/0207; A47B87/0246
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) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |