US2462222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beacon light
Assignee: Westinghouse Electric Corp
•
Filing: 1943-08-19
•
Granted: 1949-02-22
•
Expires: 1963-08-19
Abstract
No abstract record available.
Inventors
- 👤 Willis A Pennow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/18; B64F1/20; F; F21; F21V; F21V5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1337880A
Cited
US2017052A
Cited
US2096755A
Cited
US1095208A
Cited
GB191513090A
Cited
US1988569A
Cited
FR672378A
Cited
US2021611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |