US2720236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cabinet covers
Assignee: Individual
•
Filing: 1954-03-09
•
Granted: 1955-10-11
•
Expires: 1974-03-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:25
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1257206A
Cited
US1330345A
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US1619556A
Cited
US1666294A
Cited
US2010428A
Cited
US2113294A
Cited
US2570533A
Cited
US2614598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |