Patent US2628549A successfully refreshed from Google Patents.
US2628549A
Expired / Lapsed
US
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Ventilator and sun shield
Assignee: Individual
•
Filing: 1948-12-10
•
Granted: 1953-02-17
•
Expires: 1968-12-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Stelmach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:50
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/12
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |