US3433547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Add-a-drawer filing cabinet
Assignee: INTERN COMPUTER APPLIANCES COR
•
Filing: 1966-05-12
•
Granted: 1969-03-18
•
Expires: 1986-05-12
Abstract
No abstract record available.
Inventors
- 👤 Paul A Hoaglund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:54
CPC Classifications
A; A47; A47B; A47B87/00; A47B87/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US819913A
Cited
US1294087A
Cited
US1514992A
Cited
US1698578A
Cited
US1809602A
Cited
US2245026A
Cited
US2277155A
Cited
US3003839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |