US2686453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for checking superposed impressions on a moving web
Assignee: NAT LAB Manufacturing CORP
•
Filing: 1950-08-01
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Granted: 1954-08-17
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Expires: 1970-08-01
Abstract
No abstract record available.
Inventors
- 👤 John J Bogert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:15
CPC Classifications
G; G03; G03B; G03B41/00; G03B41/02; G03B41/04; G03B41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2140402A
Cited
US2155013A
Cited
US2184750A
Cited
US2214500A
Cited
US2344296A
Cited
US2454959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |