Patent US5298720A successfully refreshed from Google Patents.
Patent US2584406A successfully refreshed from Google Patents.
US2584406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure meter dial structure
Assignee: Individual
•
Filing: 1946-12-06
•
Granted: 1952-02-05
•
Expires: 1966-12-06
Abstract
No abstract record available.
Inventors
- 👤 Frederick P Willcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:17
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)
US459532A
Cited
US1080023A
Cited
US1214262A
Cited
US2092826A
Cited
US2064987A
Cited
US2070664A
Cited
US2178197A
Cited
US2268105A
Cited
US2338703A
Cited
US2350733A
Cited
US2394835A
Cited
US2421504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |