Patent US2973603A successfully refreshed from Google Patents.
US2973603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable multi-purpose desk
Assignee: Individual
•
Filing: 1959-06-29
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Granted: 1961-03-07
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Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Vincenzo Frank De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:46
CPC Classifications
A; A47; A47B; A47B23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1197233A
Cited
US1335704A
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US1726144A
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US1765514A
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US2219091A
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US2224530A
Cited
US2273361A
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US2513880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |