US2456930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan housing construction
Assignee: Gilbarco Inc
•
Filing: 1946-07-08
•
Granted: 1948-12-21
•
Expires: 1966-07-08
Abstract
No abstract record available.
Inventors
- 👤 Lancey Warren H De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:48
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/441; F23; F23D; F23D11/00; F23D11/36; F23D11/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1177028A
Cited
US2405196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |