US1488488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating device for timing camera shutters relative to flash lights
Assignee: CLINTON K MURPHY JR
•
Filing: 1921-02-12
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Granted: 1924-04-01
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Expires: 1941-02-12
Abstract
No abstract record available.
Inventors
- 👤 Russell E Froelich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:11
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-04-01 | 1927-10-01 | 1928-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-04-01 | 1931-10-01 | 1932-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-04-01 | 1935-10-01 | 1936-04-01 | $7700.00 | Window Closed / Lapsed |