US2676514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow film photographic apparatus
Assignee: Unisys Corp
•
Filing: 1949-10-04
•
Granted: 1954-04-27
•
Expires: 1969-10-04
Abstract
No abstract record available.
Inventors
- 👤 William W Eaton
- 👤 Harold T Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:58
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2251570A
Cited
US2358649A
Cited
US2461185A
Cited
US2353512A
Cited
US2458769A
Cited
US2481694A
Cited
US2552266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |