US2458334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light control
Assignee: Individual
•
Filing: 1946-09-10
•
Granted: 1949-01-04
•
Expires: 1966-09-10
Abstract
No abstract record available.
Inventors
- 👤 Jr John Brosius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:10
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B21/00; G03B21/14; G03B21/18; Y; Y10; Y10S; Y10S200/00; Y10S200/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2246486A
Cited
US1337737A
Cited
US1774457A
Cited
US1893504A
Cited
US2084267A
Cited
US2170157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |