US2546319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External flash synchronizing attachment for camera shutters
Assignee: Individual
•
Filing: 1949-02-24
•
Granted: 1951-03-27
•
Expires: 1969-02-24
Abstract
No abstract record available.
Inventors
- 👤 Paul J M Richartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:30
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0452
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1858691A
Cited
US2020741A
Cited
US1945942A
Cited
GB440638A
Cited
US2180276A
Cited
US2262215A
Cited
US2264595A
Cited
US2308017A
Cited
US2484915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |