Patent US2658583A successfully refreshed from Google Patents.
US2658583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural member for grilles and air filters
Assignee: General Electric Co
•
Filing: 1952-05-31
•
Granted: 1953-11-10
•
Expires: 1972-05-31
Abstract
No abstract record available.
Inventors
- 👤 Albert J Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:26
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/16; F02M35/164; B; B61; B61C; B61C17/00; B61C17/04; F02M35/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |