Patent US3180801A successfully refreshed from Google Patents.
US2965014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent closing louver apparatus
Assignee: Individual
•
Filing: 1958-09-02
•
Granted: 1960-12-20
•
Expires: 1978-09-02
Abstract
No abstract record available.
Inventors
- 👤 Lowery Charley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:25
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/76
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US302215A
Cited
US1249731A
Cited
US1408441A
Cited
CH172648A
Cited
US2159498A
Cited
US2394059A
Cited
US2698570A
Cited
US2790373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |