US2461930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure meter having coordinated meter pointer and calculating disk
Assignee: Simpson Electric Co
•
Filing: 1946-04-26
•
Granted: 1949-02-15
•
Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Simpson Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:32
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1447097A
Cited
US2073790A
Cited
US2129114A
Cited
US2147999A
Cited
US2105255A
Cited
US2117429A
Cited
US2227166A
Cited
US2247323A
Cited
US2245522A
Cited
US2209156A
Cited
US2278338A
Cited
US2275344A
Cited
US2274441A
Cited
US2241020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |