US2808308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable drawing board and support
Assignee: PAPELIAN
•
Filing: 1954-05-10
•
Granted: 1957-10-01
•
Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Roger G Papelian
- 👤 Kenneth L Giacomuzzi
- 👤 Carl O Engstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:25
CPC Classifications
A; A47; A47B; A47B97/00; A47B97/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1257495A
Cited
US1507384A
Cited
US1774236A
Cited
US1949521A
Cited
FR1029882A
Cited
US2674508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |