US2641523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic time recording
Assignee: Beckman and Whitley Inc
•
Filing: 1947-08-11
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Granted: 1953-06-09
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Expires: 1967-08-11
Abstract
No abstract record available.
Inventors
- 👤 John C Beckman
- 👤 Ernest M Whitley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:31
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B17/245; G04; G04F; G04F13/00; G04F13/02; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243; G03B2217/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |