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US2588844A
Expired / Lapsed
US
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Insertable platform for desks
Assignee: Art Metal Construction Co
•
Filing: 1949-05-07
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Granted: 1952-03-11
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Expires: 1969-05-07
Abstract
No abstract record available.
Inventors
- 👤 James R Jones
- 👤 Floyd H Bloomstran
- 👤 Victor A Gronberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:58
CPC Classifications
A; A47; A47B; A47B17/00; A47B17/03; A47B17/036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US128439A
Cited
US432371A
Cited
US1560149A
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US1942387A
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US2379157A
Cited
US2362047A
Cited
US2373696A
Cited
US2511919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |