US2584982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating shutter
Assignee: Individual
•
Filing: 1945-04-14
•
Granted: 1952-02-12
•
Expires: 1965-04-14
Abstract
No abstract record available.
Inventors
- 👤 William H Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:13
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/08; B60K11/085; F; F01; F01P; F01P7/00; F01P7/02; F01P7/10; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |